{"id":31284,"date":"2025-10-08T07:31:39","date_gmt":"2025-10-08T04:31:39","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/kripto-para-piyasalarinda-rekt-olmak-bir-yatirimin-degerinin-buyuk-oranda-dusmesi-veya-t\/"},"modified":"2025-10-08T07:31:39","modified_gmt":"2025-10-08T04:31:39","slug":"kripto-para-piyasalarinda-rekt-olmak-bir-yatirimin-degerinin-buyuk-oranda-dusmesi-veya-t","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/kripto-para-piyasalarinda-rekt-olmak-bir-yatirimin-degerinin-buyuk-oranda-dusmesi-veya-t\/","title":{"rendered":"Kripto para piyasalar\u0131nda &#8220;rekt&#8221; olmak, bir yat\u0131r\u0131m\u0131n de\u011ferinin b\u00fcy\u00fck oranda d\u00fc\u015fmesi veya t&#8230;"},"content":{"rendered":"<p><body><br \/>\n<span>Rekt Olmaktan Kalkan \u0130n\u015fa Etmeye: Ak\u0131ll\u0131 Kontrat Doland\u0131r\u0131c\u0131l\u0131klar\u0131yla M\u00fccadelem<\/span><\/p>\n<style>\n    body {\n        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;\n        line-height: 1.6;\n        color: #333;\n        margin: 0 auto;\n        padding: 20px;\n        max-width: 900px;\n        background-color: #f9f9f9;\n    }\n    h2, h3 {\n        color: #0056b3;\n        margin-top: 30px;\n        margin-bottom: 15px;\n    }\n    h2 {\n        border-bottom: 2px solid #007bff;\n        padding-bottom: 10px;\n    }\n    h3 {\n        color: #007bff;\n        font-size: 1.2em;\n    }\n    p {\n        margin-bottom: 15px;\n        text-align: justify;\n    }\n    ul, ol {\n        margin-bottom: 15px;\n        margin-left: 20px;\n    }\n    ul li, ol li {\n        margin-bottom: 8px;\n    }\n    strong {\n        color: #333;\n    }\n    pre {\n        background-color: #eee;\n        padding: 15px;\n        border-radius: 8px;\n        overflow-x: auto;\n        margin-bottom: 20px;\n        font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;\n        font-size: 0.9em;\n        line-height: 1.4;\n    }\n    code {\n        font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;\n        background-color: #e0e0e0;\n        padding: 2px 4px;\n        border-radius: 4px;\n    }\n    .uzman-ipucu {\n        background-color: #e6f7ff;\n        border-left: 5px solid #007bff;\n        padding: 15px;\n        margin: 20px 0;\n        border-radius: 8px;\n        font-style: italic;\n        color: #0056b3;\n    }\n    table {\n        width: 100%;\n        border-collapse: collapse;\n        margin-bottom: 20px;\n        background-color: #fff;\n    }\n    table, th, td {\n        border: 1px solid #ddd;\n    }\n    th, td {\n        padding: 12px;\n        text-align: left;\n    }\n    th {\n        background-color: #007bff;\n        color: white;\n    }\n    tr:nth-child(even) {\n        background-color: #f2f2f2;\n    }\n    .warning {\n        background-color: #fff3cd;\n        border-left: 5px solid #ffc107;\n        padding: 15px;\n        margin: 20px 0;\n        border-radius: 8px;\n        color: #856404;\n    }\n    .success {\n        background-color: #d4edda;\n        border-left: 5px solid #28a745;\n        padding: 15px;\n        margin: 20px 0;\n        border-radius: 8px;\n        color: #155724;\n    }<\/p>\n<p>    \/* Mobil Uyumluluk *\/\n    @media (max-width: 768px) {\n        body {\n            padding: 15px;\n        }\n        h2 {\n            font-size: 1.5em;\n        }\n        h3 {\n            font-size: 1.1em;\n        }\n        table {\n            display: block;\n            overflow-x: auto;\n            white-space: nowrap;\n        }\n        table thead, table tbody, table th, table td, table tr {\n            display: block;\n        }\n        table thead tr {\n            position: absolute;\n            top: -9999px;\n            left: -9999px;\n        }\n        table tr {\n            border: 1px solid #ddd;\n            margin-bottom: 10px;\n        }\n        table td {\n            border: none;\n            border-bottom: 1px solid #eee;\n            position: relative;\n            padding-left: 50%;\n            text-align: right;\n        }\n        table td:before {\n            position: absolute;\n            top: 6px;\n            left: 6px;\n            width: 45%;\n            padding-right: 10px;\n            white-space: nowrap;\n            text-align: left;\n            font-weight: bold;\n        }\n        \/* \u00d6rne\u011fin, ilk s\u00fctun ba\u015fl\u0131\u011f\u0131n\u0131 dinamik olarak ayarlay\u0131n *\/\n        table td:nth-of-type(1):before { content: attr(data-th); }\n        table td:nth-of-type(2):before { content: attr(data-th); }\n        table td:nth-of-type(3):before { content: attr(data-th); }\n        table td:nth-of-type(4):before { content: attr(data-th); }\n    }\n<\/style>\n<p>Kripto para piyasalar\u0131nda &#8220;rekt&#8221; olmak, bir yat\u0131r\u0131m\u0131n de\u011ferinin b\u00fcy\u00fck oranda d\u00fc\u015fmesi veya tamamen kaybedilmesi anlam\u0131na gelir. Bu deneyim, ne yaz\u0131k ki, bir\u00e7ok Web3 kullan\u0131c\u0131s\u0131n\u0131n ak\u0131ll\u0131 kontrat doland\u0131r\u0131c\u0131l\u0131klar\u0131 y\u00fcz\u00fcnden ya\u015fad\u0131\u011f\u0131 ac\u0131 bir ger\u00e7ektir. Ancak bu makale, sadece ac\u0131 hikayeleri anlatmakla kalmayacak; ayn\u0131 zamanda bu t\u00fcr risklere kar\u015f\u0131 nas\u0131l bir kalkan in\u015fa edece\u011fimizi, kendimizi ve varl\u0131klar\u0131m\u0131z\u0131 nas\u0131l koruyaca\u011f\u0131m\u0131z\u0131 ad\u0131m ad\u0131m ele alacak. Ak\u0131ll\u0131 kontratlar\u0131n karma\u015f\u0131k d\u00fcnyas\u0131nda g\u00fcvenle gezinmek ve doland\u0131r\u0131c\u0131lar\u0131n tuza\u011f\u0131na d\u00fc\u015fmemek i\u00e7in bilmeniz gereken her \u015feyi burada bulacaks\u0131n\u0131z.<\/p>\n<p>Kripto para d\u00fcnyas\u0131na ad\u0131m att\u0131\u011f\u0131n\u0131zda, heyecan verici f\u0131rsatlarla dolu yeni bir evrene girersiniz. Merkeziyetsiz finans (DeFi), NFT\u2019ler, GameFi gibi kavramlar kula\u011fa ho\u015f gelirken, beraberinde pek \u00e7ok riski de getirir. Belki de siz de benim gibi, h\u0131zl\u0131 kazan\u00e7 vaadiyle g\u00f6z\u00fcn\u00fcz\u00fc karart\u0131p, arkas\u0131nda ne oldu\u011funu tam olarak anlamad\u0131\u011f\u0131n\u0131z bir ak\u0131ll\u0131 kontrata fon g\u00f6nderdiniz. Sonu\u00e7? &#8220;Rekt&#8221; olmak. Benim i\u00e7in bu, on binlerce dolarl\u0131k bir yat\u0131r\u0131m\u0131n, tek bir ak\u0131ll\u0131 kontrat\u0131n k\u00f6t\u00fc niyetli bir i\u015flevi y\u00fcz\u00fcnden dakikalar i\u00e7inde buharla\u015fmas\u0131yla ger\u00e7ekle\u015fti. Bu ac\u0131 deneyim, sadece param\u0131 kaybetmekle kalmad\u0131, ayn\u0131 zamanda Web3\u2019e olan g\u00fcvenimi de sarst\u0131. \u0130\u015fte tam da bu noktada, \u201cYeter!\u201d dedim. Art\u0131k kurban olmak yerine, bu doland\u0131r\u0131c\u0131l\u0131klarla sava\u015fman\u0131n, kendimi ve ba\u015fkalar\u0131n\u0131 koruman\u0131n yollar\u0131n\u0131 bulacakt\u0131m.<\/p>\n<p>Bu makale, benim ve benzeri durumlar\u0131 ya\u015fayanlar\u0131n hikayelerinden ilham alarak, ak\u0131ll\u0131 kontrat doland\u0131r\u0131c\u0131l\u0131klar\u0131n\u0131n karanl\u0131k y\u00fcz\u00fcn\u00fc ayd\u0131nlatmay\u0131 ama\u00e7l\u0131yor. Merkeziyetsiz sistemlerin \u015feffafl\u0131k, g\u00fcvenlik ve eri\u015filebilirlik gibi temel prensipleri \u00fczerine in\u015fa edildi\u011fini biliyoruz. Ancak bu prensiplerin k\u00f6t\u00fcye kullan\u0131m\u0131, bir\u00e7ok masum yat\u0131r\u0131mc\u0131n\u0131n hayallerini suya d\u00fc\u015f\u00fcr\u00fcyor. Doland\u0131r\u0131c\u0131lar, s\u00fcrekli olarak yeni ve sofistike y\u00f6ntemler geli\u015ftirirken, biz kullan\u0131c\u0131lar\u0131n da bu tehditlere kar\u015f\u0131 bilgi ve ara\u00e7larla donanmas\u0131 kritik \u00f6nem ta\u015f\u0131yor. Makale boyunca, ak\u0131ll\u0131 kontratlar\u0131n temel i\u015fleyi\u015finden ba\u015flayarak, en yayg\u0131n doland\u0131r\u0131c\u0131l\u0131k t\u00fcrlerine, bu t\u00fcr sald\u0131r\u0131lardan korunma yollar\u0131na, hatta kontrat kodlar\u0131n\u0131 nas\u0131l inceleyece\u011fimize dair teknik detaylara kadar geni\u015f bir yelpazede bilgi sunaca\u011f\u0131m. Amac\u0131m\u0131z, bu dijital sava\u015fta herkesi donan\u0131ml\u0131 birer sava\u015f\u00e7\u0131 haline getirmek ve kripto ekosistemini hep birlikte daha g\u00fcvenli bir yer haline getirmektir. Unutmay\u0131n, bilgi en b\u00fcy\u00fck kalkand\u0131r ve bu makale sizin i\u00e7in o kalkan\u0131 in\u015fa etme rehberi olacak.<\/p>\n<h2 id=\"akilli-kontrat-dolandiriciliklarinin-anatomisi-temel-kavramlar-ve-tehditler\">Ak\u0131ll\u0131 Kontrat Doland\u0131r\u0131c\u0131l\u0131klar\u0131n\u0131n Anatomisi: Temel Kavramlar ve Tehditler<\/h2>\n<p>Ak\u0131ll\u0131 kontratlar, blok zinciri \u00fczerinde \u00e7al\u0131\u015fan, kendi kendini y\u00fcr\u00fcten, de\u011fi\u015ftirilemez kod par\u00e7ac\u0131klar\u0131d\u0131r. Geleneksel kontratlar\u0131n aksine, \u00fc\u00e7\u00fcnc\u00fc bir tarafa ihtiya\u00e7 duymadan, \u00f6nceden belirlenmi\u015f ko\u015fullar yerine getirildi\u011finde otomatik olarak i\u015flerler. Bu \u00f6zellikleri, onlar\u0131 DeFi&#8217;nin ve genel olarak Web3&#8217;\u00fcn temel yap\u0131 ta\u015f\u0131 haline getirmi\u015ftir. Ancak bu e\u015fsiz g\u00fc\u00e7, ayn\u0131 zamanda b\u00fcy\u00fck bir g\u00fcvenlik zafiyetine de d\u00f6n\u00fc\u015febilir. \u00c7\u00fcnk\u00fc bir kez blok zincirine da\u011f\u0131t\u0131lan ak\u0131ll\u0131 kontratlar de\u011fi\u015ftirilemez; dolay\u0131s\u0131yla i\u00e7inde bir a\u00e7\u0131k veya k\u00f6t\u00fc niyetli bir kod varsa, bu geri al\u0131namaz sonu\u00e7lar do\u011furabilir. \u0130\u015fte bu y\u00fczden, ak\u0131ll\u0131 kontrat doland\u0131r\u0131c\u0131l\u0131klar\u0131 kripto d\u00fcnyas\u0131nda bu kadar yayg\u0131n ve y\u0131k\u0131c\u0131d\u0131r.<\/p>\n<h3 id=\"akilli-kontrat-nedir-ve-neden-hedef-haline-gelir\">Ak\u0131ll\u0131 Kontrat Nedir ve Neden Hedef Haline Gelir?<\/h3>\n<p>Ak\u0131ll\u0131 kontratlar\u0131 basit\u00e7e, &#8220;e\u011fer X olursa, Y yap&#8221; mant\u0131\u011f\u0131yla \u00e7al\u0131\u015fan programlar olarak d\u00fc\u015f\u00fcnebiliriz. \u00d6rne\u011fin, Ethereum blok zinciri \u00fczerindeki bir ak\u0131ll\u0131 kontrat, belirli bir tarihte belirli miktarda kripto paray\u0131 al\u0131c\u0131n\u0131n c\u00fczdan\u0131na otomatik olarak g\u00f6nderebilir. Bu otomatikle\u015fme ve arac\u0131s\u0131zl\u0131k, bir\u00e7ok inovasyonu m\u00fcmk\u00fcn k\u0131lsa da, k\u00f6t\u00fc niyetli ki\u015filerin de ilgisini \u00e7ekiyor. Neden mi hedef haline gelirler?<\/p>\n<ul>\n<li><strong>De\u011fi\u015ftirilemezlik:<\/strong> K\u00f6t\u00fc niyetli bir kontrat bir kez da\u011f\u0131t\u0131ld\u0131\u011f\u0131nda, i\u00e7indeki a\u00e7\u0131\u011f\u0131 veya doland\u0131r\u0131c\u0131l\u0131k mekanizmas\u0131n\u0131 durdurmak neredeyse imkans\u0131zd\u0131r.<\/li>\n<li><strong>Anonimlik ve Takma Adl\u0131l\u0131k:<\/strong> Blok zinciri adreslerinin ger\u00e7ek kimliklerle do\u011frudan ili\u015fkilendirilmemesi, doland\u0131r\u0131c\u0131lar\u0131n izlerini s\u00fcrmeyi zorla\u015ft\u0131r\u0131r.<\/li>\n<li><strong>Karma\u015f\u0131kl\u0131k:<\/strong> Ak\u0131ll\u0131 kontrat kodu karma\u015f\u0131k olabilir ve ortalama bir kullan\u0131c\u0131n\u0131n t\u00fcm detaylar\u0131 anlamas\u0131 zordur. Bu durum, doland\u0131r\u0131c\u0131lar\u0131n kod i\u00e7ine gizlenmi\u015f tuzaklar yerle\u015ftirmesine olanak tan\u0131r.<\/li>\n<li><strong>Merkeziyetsizlik:<\/strong> Geleneksel bankac\u0131l\u0131\u011f\u0131n aksine, merkezi bir otorite veya d\u00fczenleyici kurum yoktur. Bu, kullan\u0131c\u0131lar\u0131n kendi g\u00fcvenliklerinden tamamen sorumlu oldu\u011fu anlam\u0131na gelir.<\/li>\n<\/ul>\n<h3 id=\"en-sik-karsilasilan-dolandiricilik-turleri-nelerdir\">En S\u0131k Kar\u015f\u0131la\u015f\u0131lan Doland\u0131r\u0131c\u0131l\u0131k T\u00fcrleri Nelerdir?<\/h3>\n<p>Ak\u0131ll\u0131 kontrat doland\u0131r\u0131c\u0131lar\u0131 s\u00fcrekli evrim ge\u00e7irse de, baz\u0131 temel doland\u0131r\u0131c\u0131l\u0131k y\u00f6ntemleri y\u0131llard\u0131r varl\u0131\u011f\u0131n\u0131 s\u00fcrd\u00fcrmektedir. Bunlar\u0131 bilmek, kendinizi koruman\u0131n ilk ad\u0131m\u0131d\u0131r:<\/p>\n<ol>\n<li><strong>Rug Pull (Likidite \u00c7ekme):<\/strong> Belki de en yayg\u0131n ve y\u0131k\u0131c\u0131 doland\u0131r\u0131c\u0131l\u0131k t\u00fcr\u00fcd\u00fcr. Doland\u0131r\u0131c\u0131lar, yeni bir token yarat\u0131r, onu merkeziyetsiz bir borsa (DEX) \u00fczerinde bir likidite havuzuna ekler (\u00f6rne\u011fin, token\/ETH \u00e7ifti). Fiyat\u0131 y\u00fckseltmek i\u00e7in b\u00fcy\u00fck bir pazarlama kampanyas\u0131 y\u00fcr\u00fct\u00fcr ve yat\u0131r\u0131mc\u0131lar\u0131 \u00e7eker. Yeterli para topland\u0131\u011f\u0131nda, likiditeyi havuzdan \u00e7ekerler ve tokenin de\u011feri an\u0131nda s\u0131f\u0131ra d\u00fc\u015fer. Yat\u0131r\u0131mc\u0131lar ellerinde de\u011fersiz tokenlerle kal\u0131r. \u00d6rne\u011fin, 2021&#8217;deki <strong>Squid Game token<\/strong> rug pull&#8217;u, binlerce yat\u0131r\u0131mc\u0131y\u0131 ma\u011fdur etmi\u015fti.<\/li>\n<li><strong>Honeypot (Bal Tuza\u011f\u0131):<\/strong> Bu t\u00fcr doland\u0131r\u0131c\u0131l\u0131kta, ak\u0131ll\u0131 kontrat kodu \u00f6yle yaz\u0131lm\u0131\u015ft\u0131r ki, kullan\u0131c\u0131lar token sat\u0131n alabilir ancak satamaz. Kontrat genellikle, tokeni sadece belirli bir adresin (doland\u0131r\u0131c\u0131n\u0131n adresi) satmas\u0131na izin veren gizli bir fonksiyona veya k\u0131s\u0131tlamaya sahiptir. Yat\u0131r\u0131mc\u0131lar tokeni cazip bir fiyata al\u0131rken, satmaya \u00e7al\u0131\u015ft\u0131klar\u0131nda i\u015flem ba\u015far\u0131s\u0131z olur ve paralar\u0131n\u0131 kaybederler.<\/li>\n<li><strong>Reentrancy Sald\u0131r\u0131lar\u0131 (Yeniden Giri\u015f Sald\u0131r\u0131lar\u0131):<\/strong> Bu teknik bir g\u00fcvenlik a\u00e7\u0131\u011f\u0131d\u0131r. K\u00f6t\u00fc niyetli bir kontrat, me\u015fru bir kontrattan para \u00e7ekerken, \u00e7ekme i\u015flemi tamamlanmadan \u00f6nce kontrata tekrar tekrar \u00e7a\u011fr\u0131 yapabilir ve daha fazla para \u00e7ekebilir. Tarihteki en \u00fcnl\u00fc reentrancy sald\u0131r\u0131s\u0131, 2016&#8217;da Ethereum \u00fczerindeki <strong>The DAO<\/strong> projesine yap\u0131lan sald\u0131r\u0131yd\u0131 ve milyonlarca dolarl\u0131k ETH \u00e7al\u0131nm\u0131\u015ft\u0131.<\/li>\n<li><strong>Flash Loan Sald\u0131r\u0131lar\u0131 (Fla\u015f Kredi Sald\u0131r\u0131lar\u0131):<\/strong> Fla\u015f krediler, herhangi bir teminat g\u00f6stermeden tek bir blok i\u015flemi i\u00e7inde al\u0131n\u0131p geri \u00f6denebilen b\u00fcy\u00fck kredilerdir. Doland\u0131r\u0131c\u0131lar, bu kredileri kullanarak merkeziyetsiz borsalarda (DEX) fiyatlar\u0131 manip\u00fcle eder, arbitraj f\u0131rsatlar\u0131 yarat\u0131r ve ard\u0131ndan me\u015fru projelerden fon \u00e7alar. Bu sald\u0131r\u0131lar genellikle bir DeFi protokol\u00fcndeki mant\u0131k hatas\u0131ndan veya fiyat oracle manip\u00fclasyonundan yararlan\u0131r. \u00d6rne\u011fin, <strong>Poly Network sald\u0131r\u0131s\u0131<\/strong> veya <strong>Cream Finance sald\u0131r\u0131lar\u0131<\/strong> fla\u015f kredilerle b\u00fcy\u00fck zararlar verdi.<\/li>\n<li><strong>Owner Privilege \/ Backdoor (Sahip Ayr\u0131cal\u0131\u011f\u0131 \/ Arka Kap\u0131):<\/strong> Ak\u0131ll\u0131 kontratlar genellikle bir &#8220;sahip&#8221; adresine belirli ayr\u0131cal\u0131klar tan\u0131r (\u00f6rne\u011fin, kontrat\u0131 y\u00fckseltme, parametreleri de\u011fi\u015ftirme, acil durum para \u00e7ekme). E\u011fer bu ayr\u0131cal\u0131klar k\u00f6t\u00fcye kullan\u0131labilir bir \u015fekilde kodlanm\u0131\u015fsa, kontrat\u0131n sahibi t\u00fcm fonlar\u0131 \u00e7ekebilir veya kurallar\u0131 de\u011fi\u015ftirebilir. Bu, gizlenmi\u015f bir &#8220;kill switch&#8221; veya &#8220;admin key&#8221; gibi d\u00fc\u015f\u00fcn\u00fclebilir.<\/li>\n<\/ol>\n<div class=\"uzman-ipucu\">\n    <strong>Uzman \u0130pucu:<\/strong> Her zaman bir projenin ak\u0131ll\u0131 kontrat kodunu, \u00f6zellikle &#8220;owner&#8221; (sahip) veya &#8220;admin&#8221; (y\u00f6netici) ile ilgili fonksiyonlar\u0131 dikkatle inceleyin. Bu fonksiyonlar \u00e7o\u011fu zaman projelerin en zay\u0131f halkas\u0131 olabilir. G\u00fcvenilir bir g\u00fcvenlik denetimi (audit) raporu dahi bu t\u00fcr gizli kapakl\u0131 fonksiyonlar\u0131 her zaman tespit edemeyebilir.\n<\/div>\n<p>Bu doland\u0131r\u0131c\u0131l\u0131k t\u00fcrlerini anlamak, Web3 alan\u0131nda kar\u015f\u0131la\u015fabilece\u011finiz riskleri kavraman\u0131z i\u00e7in temel bir ad\u0131md\u0131r. Bir sonraki b\u00f6l\u00fcmde, bu tehditlere kar\u015f\u0131 nas\u0131l kendinize sa\u011flam bir kalkan in\u015fa edece\u011finizi, yani g\u00fcvenli ak\u0131ll\u0131 kontrat kullan\u0131m pratiklerini detayl\u0131ca ele alaca\u011f\u0131z.<\/p>\n<h2 id=\"kendini-koruma-kilavuzu-guvenli-akilli-kontrat-kullanimi-ve-teknik-incelemeler\">Kendini Koruma K\u0131lavuzu: G\u00fcvenli Ak\u0131ll\u0131 Kontrat Kullan\u0131m\u0131 ve Teknik \u0130ncelemeler<\/h2>\n<p>Kripto para piyasalar\u0131nda hayatta kalmak, sadece \u015fansl\u0131 olmakla de\u011fil, ayn\u0131 zamanda bilin\u00e7li kararlar almakla m\u00fcmk\u00fcnd\u00fcr. Doland\u0131r\u0131c\u0131l\u0131k taktikleri ne kadar karma\u015f\u0131k olursa olsun, do\u011fru bilgi ve ara\u00e7larla kendinizi koruman\u0131z kesinlikle m\u00fcmk\u00fcn. Bu b\u00f6l\u00fcmde, g\u00fcvenli ak\u0131ll\u0131 kontrat etkile\u015fimleri i\u00e7in pratik ad\u0131mlar\u0131, teknik inceleme y\u00f6ntemlerini ve ileri d\u00fczey koruma stratejilerini detayl\u0131 bir \u015fekilde inceleyece\u011fiz.<\/p>\n<h3 id=\"her-projeyi-bastan-sona-nasil-arastirmaliyiz-dyor-ilkesi\">Her Projeyi Ba\u015ftan Sona Nas\u0131l Ara\u015ft\u0131rmal\u0131y\u0131z? (DYOR \u0130lkesi)<\/h3>\n<p>\u201cDo Your Own Research\u201d (Kendi Ara\u015ft\u0131rman\u0131 Yap), kripto d\u00fcnyas\u0131n\u0131n alt\u0131n kural\u0131d\u0131r. Bir projeye yat\u0131r\u0131m yapmadan veya bir ak\u0131ll\u0131 kontratla etkile\u015fime girmeden \u00f6nce kapsaml\u0131 bir ara\u015ft\u0131rma yapmak zorundas\u0131n\u0131z. Bu ara\u015ft\u0131rman\u0131n temel ad\u0131mlar\u0131 \u015funlard\u0131r:<\/p>\n<ol>\n<li><strong>Beyaz B\u00fclten (Whitepaper) ve Yol Haritas\u0131 (Roadmap) \u0130ncelemesi:<\/strong> Projenin arkas\u0131ndaki vizyonu, teknolojiyi, problemleri nas\u0131l \u00e7\u00f6zmeyi ama\u00e7lad\u0131\u011f\u0131n\u0131 ve gelecek planlar\u0131n\u0131 anlamak i\u00e7in beyaz b\u00fclteni okuyun. Ger\u00e7ek\u00e7i hedefler ve net bir teknolojik a\u00e7\u0131klama aray\u0131n. Yol haritas\u0131n\u0131n tutarl\u0131 ve ula\u015f\u0131labilir g\u00f6r\u00fcnmesi \u00f6nemlidir.<\/li>\n<li><strong>Ekip Ara\u015ft\u0131rmas\u0131:<\/strong> Projenin arkas\u0131ndaki ki\u015filerin kimlikleri a\u00e7\u0131k m\u0131? Daha \u00f6nce ba\u015far\u0131l\u0131 projelere imza atm\u0131\u015flar m\u0131? Sosyal medya profillerini, LinkedIn hesaplar\u0131n\u0131 kontrol edin. Tamamen anonim bir ekiple \u00e7al\u0131\u015fan projeler, rug pull riski ta\u015f\u0131ma olas\u0131l\u0131\u011f\u0131 daha y\u00fcksektir. Ancak, baz\u0131 ba\u015far\u0131l\u0131 anonim projelerin de oldu\u011funu unutmamak gerekir, bu y\u00fczden di\u011fer fakt\u00f6rlerle birlikte de\u011ferlendirin.<\/li>\n<li><strong>Topluluk ve Sosyal Medya Aktivitesi:<\/strong> Projenin Telegram, Discord, Twitter gibi platformlardaki topluluklar\u0131n\u0131 inceleyin. Topluluk ger\u00e7ek mi, yoksa botlarla m\u0131 dolu? Sorular\u0131n\u0131za nas\u0131l cevap veriliyor? Ekip, toplulukla aktif ve \u015feffaf bir ileti\u015fim i\u00e7inde mi? \u00c7ok fazla \u015f\u00fcpheci soruya genel-ge\u00e7er veya ka\u00e7amak cevaplar verilmesi bir uyar\u0131 i\u015faretidir.<\/li>\n<li><strong>Ak\u0131ll\u0131 Kontrat Adresi ve Tokenomik:<\/strong> Tokenin toplam arz\u0131n\u0131, da\u011f\u0131t\u0131m\u0131n\u0131, kilitlenme periyotlar\u0131n\u0131 (vesting schedules) ve \u00f6zellikle ekibin veya geli\u015ftiricilerin elindeki token miktar\u0131n\u0131 inceleyin. B\u00fcy\u00fck miktarda tokenin tek bir adreste (\u00f6zellikle ekip adreslerinde) tutulmas\u0131 ve bunun i\u00e7in net bir kilitlenme plan\u0131 olmamas\u0131, potansiyel bir rug pull riskini i\u015faret edebilir. Kontrat adresini Etherscan (veya ilgili blok zincirinin taray\u0131c\u0131s\u0131) \u00fczerinden kontrol edin.<\/li>\n<li><strong>G\u00fcvenlik Denetimleri (Audits):<\/strong> Projenin ba\u011f\u0131ms\u0131z bir g\u00fcvenlik firmas\u0131 taraf\u0131ndan denetlenip denetlenmedi\u011fini \u00f6\u011frenin. CertiK, SlowMist, PeckShield gibi firmalar\u0131n denetim raporlar\u0131n\u0131 aray\u0131n. Denetim raporlar\u0131 her zaman %100 g\u00fcvenlik garantisi vermese de, en az\u0131ndan bilinen zafiyetlerin giderildi\u011fini ve projenin g\u00fcvenli\u011fe \u00f6nem verdi\u011fini g\u00f6sterir. Raporu okuyarak bulunan zay\u0131fl\u0131klar\u0131n d\u00fczeltilip d\u00fczeltilmedi\u011fini kontrol edin.<\/li>\n<\/ol>\n<h3 id=\"akilli-kontrat-kodunu-incelemenin-puf-noktalari-nelerdir\">Ak\u0131ll\u0131 Kontrat Kodunu \u0130ncelemenin P\u00fcf Noktalar\u0131 Nelerdir?<\/h3>\n<p>Kod okuma beceriniz olmasa bile, baz\u0131 temel kontrolleri yaparak potansiyel tehlikeleri fark edebilirsiniz. Bir projenin ak\u0131ll\u0131 kontrat kodunun a\u00e7\u0131k kaynakl\u0131 ve do\u011frulanm\u0131\u015f olmas\u0131 bir zorunluluktur. Bunu Etherscan (veya BSCScan, Polygonscan vb.) \u00fczerinden kontrol edebilirsiniz.<\/p>\n<ol>\n<li><strong>Kontrat\u0131n Do\u011frulanm\u0131\u015f Olmas\u0131:<\/strong> Bir kontrat\u0131n Etherscan&#8217;da &#8220;Verified&#8221; (Do\u011frulanm\u0131\u015f) olarak g\u00f6r\u00fcnmesi, da\u011f\u0131t\u0131lan kodun, geli\u015ftiricinin iddia etti\u011fi kodla ayn\u0131 oldu\u011fu anlam\u0131na gelir. Bu, size kodu inceleme ve g\u00fcvenli oldu\u011funu do\u011frulama \u015fans\u0131 verir. Do\u011frulanmam\u0131\u015f kontratlardan uzak durun.<\/li>\n<li><strong>Kod \u0130ncelemesi (Basit D\u00fczeyde):<\/strong>\n<ul>\n<li><strong>Owner Fonksiyonlar\u0131:<\/strong> Kodda <code>onlyOwner<\/code> veya <code>require(msg.sender == owner)<\/code> gibi ifadeleri aray\u0131n. Bu fonksiyonlar\u0131n ne i\u015fe yarad\u0131\u011f\u0131n\u0131 anlamaya \u00e7al\u0131\u015f\u0131n. \u00d6rne\u011fin, <code>emergencyWithdraw()<\/code> veya <code>updateFees()<\/code> gibi fonksiyonlar\u0131n yaln\u0131zca sahibine \u00f6zel olmas\u0131 normaldir, ancak <code>mint()<\/code> (yeni token basma) veya <code>transferAllFunds()<\/code> gibi kritik fonksiyonlar\u0131n sahibi taraf\u0131ndan s\u0131n\u0131rs\u0131zca kullan\u0131labilmesi risk ta\u015f\u0131r.<\/li>\n<li><strong>Pausable (Durdurulabilir) Fonksiyonlar:<\/strong> Bir kontrat\u0131n durdurulabilir olmas\u0131, k\u00f6t\u00fc niyetli bir sald\u0131r\u0131 an\u0131nda sistemi korumak i\u00e7in faydal\u0131 olabilir. Ancak bu \u00f6zellik, ekibin kontrat\u0131 diledi\u011fi zaman durdurup fonlar\u0131 \u00e7ekmesi i\u00e7in de kullan\u0131labilir. Bu t\u00fcr mekanizmalar\u0131n ne zaman ve nas\u0131l devreye girebilece\u011fine dair mant\u0131\u011f\u0131 anlamak \u00f6nemlidir.<\/li>\n<li><strong>Vergi (Tax) Mekanizmalar\u0131:<\/strong> \u00d6zellikle yeni meme coinlerde yayg\u0131n olan al\u0131m\/sat\u0131m vergileri, honeypot doland\u0131r\u0131c\u0131l\u0131klar\u0131n\u0131n gizlendi\u011fi yerler olabilir. Y\u00fcksek veya dinamik olarak ayarlanabilen vergilere dikkat edin. \u00d6zellikle <code>if (recipient == routerAddress) { \/* sell tax logic *\/ }<\/code> gibi satma i\u015flemlerine uygulanan vergi kontrolleri, sadece belirli adreslerin sat\u0131\u015f yapmas\u0131na izin veren honeypot mekanizmalar\u0131n\u0131 gizleyebilir.<\/li>\n<li><strong>Kara Liste (Blacklist) Fonksiyonlar\u0131:<\/strong> Kontrat i\u00e7inde belirli adresleri kara listeye alma yetene\u011fi varsa, bu yetkinin nas\u0131l kullan\u0131labilece\u011fini sorgulay\u0131n. Doland\u0131r\u0131c\u0131lar, sizin adresinizi kara listeye alarak token satman\u0131z\u0131 engelleyebilir.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<pre><code class=\"language-solidity\">\n\/\/ Potansiyel Owner Privilege veya Honeypot \u00f6rne\u011fi:\n\/\/ Bu kontratta, owner'\u0131n fonlar\u0131 \u00e7ekme ve kullan\u0131c\u0131lar\u0131 blacklist'e alma yetkisi var.\ncontract RiskyToken {\n    address public owner;\n    mapping(address => bool) public isBlacklisted;\n    uint256 public totalSupply;\n    mapping(address => uint256) public balances;\n\n    constructor() {\n        owner = msg.sender;\n        totalSupply = 1000000 * 10**18;\n        balances[owner] = totalSupply;\n    }\n\n    modifier onlyOwner() {\n        require(msg.sender == owner, \"Yetkisiz erisim!\");\n        _;\n    }\n\n    function transfer(address recipient, uint256 amount) public returns (bool) {\n        require(!isBlacklisted[msg.sender], \"Kara listedesiniz, islem yapamazsiniz.\");\n        require(balances[msg.sender] >= amount, \"Yetersiz bakiye.\");\n        balances[msg.sender] -= amount;\n        balances[recipient] += amount;\n        return true;\n    }\n\n    function blacklistUser(address user) public onlyOwner {\n        isBlacklisted[user] = true; \/\/ Owner diledigi kullaniciyi blacklist'e alabilir\n    }\n\n    function removeBlacklist(address user) public onlyOwner {\n        isBlacklisted[user] = false;\n    }\n\n    function emergencyWithdrawAll() public onlyOwner {\n        \/\/ Owner, kontrattaki TUM fonlari cekebilir - potansiyel rug pull riski\n        (bool success, ) = owner.call{value: address(this).balance}(\"\");\n        require(success, \"Withdrawal failed\");\n    }\n}\n<\/pre>\n<p><\/code><\/p>\n<p>Yukar\u0131daki \u00f6rnekte <code>emergencyWithdrawAll()<\/code> fonksiyonu, kontrat sahibine kontrattaki t\u00fcm ETH'yi (veya di\u011fer native token'\u0131) \u00e7ekme yetkisi veriyor. Bu, \u00f6zellikle bir likidite havuzu kontrat\u0131ysa veya kullan\u0131c\u0131lardan fon toplayan bir kontratsa, \u00e7ok b\u00fcy\u00fck bir rug pull riski ta\u015f\u0131r. Ayr\u0131ca <code>blacklistUser()<\/code> fonksiyonu, doland\u0131r\u0131c\u0131n\u0131n diledi\u011fi ki\u015fiyi token satmaktan al\u0131koymas\u0131na olanak tan\u0131r.<\/p>\n<h3 id=\"cuzdan-guvenligimizi-nasil-en-ust-seviyeye-cikarabiliriz\">C\u00fczdan G\u00fcvenli\u011fimizi Nas\u0131l En \u00dcst Seviyeye \u00c7\u0131karabiliriz?<\/h3>\n<p>Ak\u0131ll\u0131 kontratlar ne kadar g\u00fcvenli olursa olsun, c\u00fczdan\u0131n\u0131z\u0131n g\u00fcvenli\u011fi sizin kontrol\u00fcn\u00fczdedir:<\/p>\n<ol>\n<li><strong>Donan\u0131m C\u00fczdanlar\u0131 (Hardware Wallets):<\/strong> Ledger veya Trezor gibi donan\u0131m c\u00fczdanlar\u0131, \u00f6zel anahtarlar\u0131n\u0131z\u0131 \u00e7evrimd\u0131\u015f\u0131 tutarak en y\u00fcksek korumay\u0131 sa\u011flar. \u0130\u015flemleri onaylamak i\u00e7in fiziksel tu\u015flara basman\u0131z gerekir, bu da k\u00f6t\u00fc ama\u00e7l\u0131 yaz\u0131l\u0131mlar\u0131n yetkisiz i\u015flem yapmas\u0131n\u0131 engeller.<\/li>\n<li><strong>Multi-sig (\u00c7oklu \u0130mza) C\u00fczdanlar:<\/strong> \u00d6zellikle b\u00fcy\u00fck miktarda fon y\u00f6netiyorsan\u0131z, fonlar\u0131 \u00e7ekmek i\u00e7in birden fazla ki\u015finin onay\u0131n\u0131 gerektiren multi-sig c\u00fczdanlar\u0131 kullan\u0131n. Bu, tek bir ki\u015finin t\u00fcm fonlar\u0131 ele ge\u00e7irmesini veya tek bir g\u00fcvenlik ihlalinin t\u00fcm varl\u0131klar\u0131 riske atmas\u0131n\u0131 engeller. Gnosis Safe (\u015fimdi Safe) bu alanda pop\u00fcler bir \u00e7\u00f6z\u00fcmd\u00fcr.<\/li>\n<li><strong>C\u00fczdan Ba\u011flant\u0131lar\u0131n\u0131 ve Onaylar\u0131n\u0131 Y\u00f6netin:<\/strong> Dapps'e ba\u011fland\u0131\u011f\u0131n\u0131zda, c\u00fczdan\u0131n\u0131z\u0131n hangi izinleri verdi\u011fine dikkat edin. \u00d6zellikle token onaylar\u0131 (token approvals), Dapp'in belirli bir tokeni c\u00fczdan\u0131n\u0131zdan sizin ad\u0131n\u0131za transfer etmesine izin verir. \u0130zinleri d\u00fczenli olarak <a href=\"https:\/\/revoke.cash\/\" target=\"_blank\" rel=\"noopener noreferrer\">Revoke.cash<\/a> gibi ara\u00e7larla kontrol edin ve gereksiz veya \u015f\u00fcpheli izinleri iptal edin.<\/li>\n<li><strong>\u015e\u00fcpheli Ba\u011flant\u0131lardan Uzak Durun:<\/strong> E-posta, sosyal medya veya sahte web siteleri arac\u0131l\u0131\u011f\u0131yla gelen \u015f\u00fcpheli ba\u011flant\u0131lara asla t\u0131klamay\u0131n. Her zaman projenin resmi web sitesini veya kaynaklar\u0131n\u0131 kullan\u0131n. Phishing sald\u0131r\u0131lar\u0131, c\u00fczdan bilgilerinizi \u00e7almak i\u00e7in yayg\u0131n olarak kullan\u0131l\u0131r.<\/li>\n<li><strong>Ayr\u0131 C\u00fczdanlar Kullan\u0131n:<\/strong> G\u00fcnl\u00fck i\u015flemleriniz i\u00e7in k\u00fc\u00e7\u00fck miktarda fon i\u00e7eren ayr\u0131 bir \"s\u0131cak c\u00fczdan\" ve uzun vadeli yat\u0131r\u0131mlar\u0131n\u0131z i\u00e7in donan\u0131m c\u00fczdan\u0131 gibi daha g\u00fcvenli bir \"so\u011fuk c\u00fczdan\" kullan\u0131n.<\/li>\n<\/ol>\n<div class=\"uzman-ipucu\">\n    <strong>Uzman \u0130pucu:<\/strong> Revoke.cash kullanarak c\u00fczdan onaylar\u0131n\u0131z\u0131 periyodik olarak kontrol etmek, siber h\u0131rs\u0131zlar\u0131n eski veya unutulmu\u015f izinleri kullanarak fonlar\u0131n\u0131z\u0131 \u00e7ekmesini engellemenin en etkili yollar\u0131ndan biridir. Bu basit ad\u0131m, sizi b\u00fcy\u00fck kay\u0131plardan kurtarabilir!\n<\/div>\n<p>Bu k\u0131lavuzdaki ad\u0131mlar\u0131 uygulayarak, ak\u0131ll\u0131 kontrat doland\u0131r\u0131c\u0131l\u0131klar\u0131na kar\u015f\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde daha diren\u00e7li hale geleceksiniz. Kendi ara\u015ft\u0131rman\u0131z\u0131 yapmak, kodu anlamaya \u00e7al\u0131\u015fmak ve c\u00fczdan g\u00fcvenli\u011finizi en \u00fcst d\u00fczeyde tutmak, Web3 evreninde g\u00fcvende kalman\u0131z i\u00e7in vazge\u00e7ilmezdir. Bir sonraki b\u00f6l\u00fcmde, ge\u00e7mi\u015fteki b\u00fcy\u00fck doland\u0131r\u0131c\u0131l\u0131k vakalar\u0131ndan \u00e7\u0131kar\u0131lan derslere ve daha derin teknik inceleme ipu\u00e7lar\u0131na odaklanaca\u011f\u0131z.<\/p>\n<h2 id=\"gercek-dunya-vaka-analizleri-ve-teknik-detaylar-zayif-noktalari-nasil-belirleriz\">Ger\u00e7ek D\u00fcnya Vaka Analizleri ve Teknik Detaylar: Zay\u0131f Noktalar\u0131 Nas\u0131l Belirleriz?<\/h2>\n<p>Web3 ekosistemindeki b\u00fcy\u00fck doland\u0131r\u0131c\u0131l\u0131k vakalar\u0131, bize sadece riskleri de\u011fil, ayn\u0131 zamanda bu risklerden nas\u0131l ders \u00e7\u0131karaca\u011f\u0131m\u0131z\u0131 da g\u00f6steriyor. Bu b\u00f6l\u00fcmde, hem ge\u00e7mi\u015fin ac\u0131 deneyimlerinden yola \u00e7\u0131karak g\u00fcvenlik bilincimizi art\u0131racak hem de ak\u0131ll\u0131 kontrat kodlar\u0131n\u0131 daha derinlemesine inceleyerek potansiyel zay\u0131fl\u0131klar\u0131 nas\u0131l tespit edece\u011fimize dair teknik ipu\u00e7lar\u0131 sunaca\u011f\u0131z.<\/p>\n<h3 id=\"buyuk-dolandiricilik-vakalarindan-neler-ogrendik\">B\u00fcy\u00fck Doland\u0131r\u0131c\u0131l\u0131k Vakalar\u0131ndan Neler \u00d6\u011frendik?<\/h3>\n<p>Her b\u00fcy\u00fck kripto doland\u0131r\u0131c\u0131l\u0131\u011f\u0131 veya hack olay\u0131, asl\u0131nda bir \"\u00f6\u011frenme f\u0131rsat\u0131d\u0131r\". \u0130\u015fte birka\u00e7 \u00f6nemli vaka ve \u00e7\u0131kar\u0131lacak dersler:<\/p>\n<ul>\n<li><strong>The DAO Hack (2016):<\/strong> Ethereum tarihindeki en b\u00fcy\u00fck hack olaylar\u0131ndan biri olan The DAO, bir \"reentrancy\" (yeniden giri\u015f) sald\u0131r\u0131s\u0131 nedeniyle 50 milyon dolar\u0131n \u00fczerinde ETH kayb\u0131na u\u011frad\u0131.\n<ul>\n<li><strong>Ders:<\/strong> Ak\u0131ll\u0131 kontrat geli\u015ftiricileri, d\u0131\u015far\u0131ya yap\u0131lan \u00e7a\u011fr\u0131lardan \u00f6nce kontrat\u0131n durumunu g\u00fcncellemelidir (Checks-Effects-Interactions pattern). Kullan\u0131c\u0131lar ise kontrat\u0131n kodunu veya denetim raporlar\u0131n\u0131 inceleyerek bu t\u00fcr zafiyetlere dikkat etmelidir.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Iron Finance \/ TITAN Rug Pull (2021):<\/strong> Mark Cuban gibi \u00fcnl\u00fclerin de yat\u0131r\u0131m yapt\u0131\u011f\u0131 Iron Finance projesinin TITAN token'\u0131, karma\u015f\u0131k tokenomik ve likidite \u00e7ekme sald\u0131r\u0131s\u0131 kombinasyonuyla saatler i\u00e7inde de\u011ferinin neredeyse tamam\u0131n\u0131 kaybetti. Milyarlarca dolarl\u0131k de\u011fer buharla\u015ft\u0131.\n<ul>\n<li><strong>Ders:<\/strong> \u00c7ok h\u0131zl\u0131 y\u00fckselen ve \"too good to be true\" (ger\u00e7ek olamayacak kadar iyi) g\u00f6r\u00fcnen projelerde ekstra dikkatli olun. Karma\u015f\u0131k ve \u015feffaf olmayan tokenomik yap\u0131lar\u0131 sorgulay\u0131n. \u00d6zellikle yeni projelere b\u00fcy\u00fck miktarda yat\u0131r\u0131m yapmaktan ka\u00e7\u0131n\u0131n.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Poly Network Hack (2021):<\/strong> \u00c7apraz zincir bir protokol olan Poly Network, bir g\u00fcvenlik a\u00e7\u0131\u011f\u0131 nedeniyle 600 milyon dolar\u0131n \u00fczerinde varl\u0131\u011f\u0131n \u00e7al\u0131nmas\u0131na yol a\u00e7an devasa bir sald\u0131r\u0131ya u\u011frad\u0131. Sald\u0131rgan daha sonra fonlar\u0131n b\u00fcy\u00fck bir k\u0131sm\u0131n\u0131 iade etse de, olay\u0131n b\u00fcy\u00fckl\u00fc\u011f\u00fc \u015fok ediciydi.\n<ul>\n<li><strong>Ders:<\/strong> K\u00f6pr\u00fc (bridge) ve \u00e7apraz zincir (cross-chain) protokolleri, karma\u015f\u0131kl\u0131klar\u0131 nedeniyle ek g\u00fcvenlik riskleri ta\u015f\u0131yabilir. Bu t\u00fcr protokollerin g\u00fcvenlik denetimlerini ve uzun s\u00fcreli ge\u00e7mi\u015flerini dikkatlice inceleyin. Tek bir merkezi g\u00fcvenlik noktas\u0131n\u0131n olmamas\u0131, daha b\u00fcy\u00fck risk anlam\u0131na gelir.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3 id=\"kodu-inceleyerek-potansiyel-tehlikeleri-nasil-fark-ederiz\">Kodu \u0130nceleyerek Potansiyel Tehlikeleri Nas\u0131l Fark Ederiz?<\/h3>\n<p>Bir ak\u0131ll\u0131 kontrat\u0131n kodunu derinlemesine incelemek, bir\u00e7ok kullan\u0131c\u0131 i\u00e7in zorlay\u0131c\u0131 olabilir. Ancak baz\u0131 temel ipu\u00e7lar\u0131 ve dikkat edilmesi gereken noktalarla, potansiyel sorunlar\u0131 tespit etme \u015fans\u0131n\u0131z\u0131 art\u0131rabilirsiniz. Bu b\u00f6l\u00fcm, \u00f6zellikle Solidity tabanl\u0131 kontratlar i\u00e7in ge\u00e7erli olacak.<\/p>\n<ol>\n<li><strong>Etherscan'de Kontrat Kodunu \u0130nceleme:<\/strong>\n<ul>\n<li>Kontrat adresini Etherscan (veya ilgili blok zinciri taray\u0131c\u0131s\u0131) \u00fczerinde arat\u0131n.<\/li>\n<li>\"Code\" sekmesine gidin. Kontrat\u0131n do\u011frulanm\u0131\u015f oldu\u011fundan emin olun (ye\u015fil tik i\u015fareti).<\/li>\n<li>Kaynak kodu okumaya ba\u015flay\u0131n.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Kritik Fonksiyonlar\u0131 Arama:<\/strong>\n<ul>\n<li><strong><code>mint()<\/code> veya <code>burn()<\/code> fonksiyonlar\u0131:<\/strong> Bu fonksiyonlar, yeni token basma veya token yakma yetkisi verir. E\u011fer <code>onlyOwner<\/code> k\u0131s\u0131tlamas\u0131 yoksa veya sahibi taraf\u0131ndan s\u0131n\u0131rs\u0131zca kullan\u0131labiliyorsa, bu bir enflasyon riski veya honeypot i\u015faretidir.<\/li>\n<li><strong><code>transferOwnership()<\/code> veya <code>setOwner()<\/code>:<\/strong> Kontrat\u0131n sahibini de\u011fi\u015ftiren bu fonksiyonlar, dikkatle incelenmelidir. E\u011fer sahip, kontrat\u0131 ba\u015fka bir bilinmeyen adrese kolayca devredebilirse, bu bir rug pull riski ta\u015f\u0131yabilir.<\/li>\n<li><strong><code>updateFee()<\/code> veya <code>changeTax()<\/code>:<\/strong> E\u011fer kontrat\u0131n sahibinin i\u015flem \u00fccretlerini veya vergileri istedi\u011fi zaman de\u011fi\u015ftirmesine izin veren bir fonksiyon varsa, bu riskli olabilir. Sat\u0131\u015f vergisini %100'e \u00e7\u0131kararak tokeninizi sat\u0131lamaz hale getirebilirler.<\/li>\n<li><strong><code>setMaxTxAmount()<\/code> veya <code>setMaxWalletAmount()<\/code>:<\/strong> Maksimum i\u015flem miktar\u0131 veya c\u00fczdan ba\u015f\u0131na maksimum token miktar\u0131n\u0131 ayarlayan fonksiyonlar, doland\u0131r\u0131c\u0131lar\u0131n kendi adreslerini bu k\u0131s\u0131tlamalar\u0131n d\u0131\u015f\u0131nda tutarak b\u00fcy\u00fck miktarda token satmas\u0131na izin verebilir.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Yeniden Giri\u015f (Reentrancy) A\u00e7\u0131klar\u0131:<\/strong>\n<p>Yukar\u0131da The DAO \u00f6rne\u011finde bahsetti\u011fim gibi, d\u0131\u015f \u00e7a\u011fr\u0131lardan \u00f6nce kontrat durumunun g\u00fcncellenmemesi bir g\u00fcvenlik a\u00e7\u0131\u011f\u0131d\u0131r. K\u00f6t\u00fc bir \u00f6rnek ve g\u00fcvenli bir \u00f6rne\u011fi tekrar inceleyelim:<\/p>\n<pre><code class=\"language-solidity\">\n\/\/ K\u00f6t\u00fc \u00f6rnek: Reentrancy sald\u0131r\u0131s\u0131na a\u00e7\u0131k\nfunction withdraw(uint _amount) public {\n    require(balances[msg.sender] >= _amount, \"Yetersiz bakiye.\");\n    (bool success, ) = msg.sender.call{value: _amount}(\"\"); \/\/ D\u0131\u015f \u00e7a\u011fr\u0131 \u00f6nce yap\u0131l\u0131yor\n    require(success, \"Islem basarisiz.\");\n    balances[msg.sender] -= _amount; \/\/ Durum g\u00fcncellenmesi en sonda\n}\n\n\/\/ \u0130yi \u00f6rnek: \u00c7ekilen miktar \u00f6nce g\u00fcncellenir (Checks-Effects-Interactions pattern)\nfunction withdrawSafe(uint _amount) public {\n    require(balances[msg.sender] >= _amount, \"Yetersiz bakiye.\");\n    balances[msg.sender] -= _amount; \/\/ \u00d6nce durum g\u00fcncelleniyor (Effects)\n    (bool success, ) = msg.sender.call{value: _amount}(\"\"); \/\/ D\u0131\u015f \u00e7a\u011fr\u0131 (Interactions)\n    require(success, \"Cekim basarisiz oldu.\");\n}\n        <\/pre>\n<p><\/code><\/p>\n<p>G\u00fcvenli \u00f6rnekte, kullan\u0131c\u0131n\u0131n bakiyesi d\u0131\u015f \u00e7a\u011fr\u0131 yap\u0131lmadan \u00f6nce g\u00fcncellenir. Bu, sald\u0131rgan\u0131n tekrar tekrar \u00e7a\u011fr\u0131 yapmaya \u00e7al\u0131\u015fsa bile bakiyesinin zaten d\u00fc\u015f\u00fcr\u00fclm\u00fc\u015f olaca\u011f\u0131 anlam\u0131na gelir.<\/p>\n<\/li>\n<li><strong>Sistemdeki De\u011fi\u015fkenler ve Fonksiyon \u00c7a\u011fr\u0131lar\u0131:<\/strong>\n<p>Geli\u015fmi\u015f analizi yapmak i\u00e7in kontratta yer alan t\u00fcm fonksiyonlar\u0131n ne i\u015fe yarad\u0131\u011f\u0131n\u0131 anlamak gerekir. \u00d6zellikle <code>msg.sender<\/code>, <code>msg.value<\/code> gibi k\u00fcresel de\u011fi\u015fkenlerin kullan\u0131m\u0131na ve d\u0131\u015f kontratlara yap\u0131lan \u00e7a\u011fr\u0131lara dikkat edin.<\/p>\n<pre><code class=\"language-solidity\">\n\/\/ Token kontrat\u0131nda potansiyel honeypot kontrol\u00fc:\n\/\/ Al\u0131\u015f-sat\u0131\u015f vergilerini inceleyin. Baz\u0131 honeypot'lar, sell i\u015flemi i\u00e7in %99 vergi koyar.\nfunction _transfer(address sender, address recipient, uint256 amount) internal virtual {\n    require(sender != address(0), \"ERC20: transfer from the zero address\");\n    require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n    uint256 finalAmount = amount;\n\n    \/\/ E\u011fer al\u0131c\u0131 bir borsa havuzu ise ve g\u00f6nderici bir kullan\u0131c\u0131 ise, sat\u0131\u015f vergisi uygulayabilirler\n    if (recipient == PancakeSwapRouterAddress && sender != owner()) { \/\/ Bu sadece bir \u00f6rnek!\n        uint256 sellTax = (amount * _currentSellTax) \/ 100; \/\/ currentSellTax \u00e7ok y\u00fcksek olabilir\n        finalAmount = amount - sellTax;\n        _balances[taxWallet] += sellTax;\n    }\n    \/\/ ... transfer i\u015flemi devam eder\n}\n        <\/pre>\n<p><\/code><\/p>\n<p>Yukar\u0131daki \u00f6rnekte, <code>_currentSellTax<\/code> de\u011fi\u015fkeninin nas\u0131l ayarland\u0131\u011f\u0131 ve kimler taraf\u0131ndan de\u011fi\u015ftirilebilece\u011fi kritik \u00f6neme sahiptir. E\u011fer <code>owner()<\/code> taraf\u0131ndan keyfi olarak %99 veya %100'e \u00e7\u0131kar\u0131labiliyorsa, bu bir honeypot riski ta\u015f\u0131r.<\/p>\n<\/li>\n<\/ol>\n<h3 id=\"gelecegin-akilli-kontrat-guvenligi-yenilikler-ve-ongoruler\">Gelece\u011fin Ak\u0131ll\u0131 Kontrat G\u00fcvenli\u011fi: Yenilikler ve \u00d6ng\u00f6r\u00fcler<\/h3>\n<p>Ak\u0131ll\u0131 kontrat g\u00fcvenli\u011fi alan\u0131 s\u00fcrekli geli\u015fiyor. Gelecekte bizi bekleyen baz\u0131 \u00f6nemli yenilikler \u015funlard\u0131r:<\/p>\n<ul>\n<li><strong>Formal Verification (Bi\u00e7imsel Do\u011frulama):<\/strong> Kontratlar\u0131n matematiksel olarak hatas\u0131z oldu\u011funu kan\u0131tlamay\u0131 ama\u00e7layan y\u00f6ntemler. Bu, reentrancy gibi bilinen bir\u00e7ok hatay\u0131 yaz\u0131m a\u015famas\u0131nda engellemeye yard\u0131mc\u0131 olabilir.<\/li>\n<li><strong>Decentralized Security Audits (Merkeziyetsiz G\u00fcvenlik Denetimleri):<\/strong> Immunefi, Code4rena gibi platformlar, geli\u015ftiricilere a\u00e7\u0131k kaynak kodlar\u0131n\u0131 bir toplulu\u011fun incelemesi ve zafiyet bulmas\u0131 i\u00e7in te\u015fvikler sunar. Bu, merkezi denetim firmalar\u0131n\u0131n s\u0131n\u0131rlamalar\u0131n\u0131 a\u015fmaya yard\u0131mc\u0131 olabilir.<\/li>\n<li><strong>AI\/ML Destekli G\u00fcvenlik Analizi:<\/strong> Yapay zeka ve makine \u00f6\u011frenimi, b\u00fcy\u00fck kod tabanlar\u0131ndaki potansiyel zafiyetleri ve anormallikleri otomatik olarak tespit etmek i\u00e7in kullan\u0131labilir.<\/li>\n<li><strong>Mod\u00fcler Ak\u0131ll\u0131 Kontratlar ve Standartlar:<\/strong> Daha g\u00fcvenli ve yeniden kullan\u0131labilir kod par\u00e7ac\u0131klar\u0131 (\u00f6rne\u011fin OpenZeppelin k\u00fct\u00fcphaneleri) kullan\u0131lmas\u0131, yeni zafiyetlerin ortaya \u00e7\u0131kma olas\u0131l\u0131\u011f\u0131n\u0131 azalt\u0131r. EIP (Ethereum Improvement Proposal) standartlar\u0131 da g\u00fcvenli\u011fi art\u0131r\u0131r.<\/li>\n<li><strong>Geli\u015fmi\u015f C\u00fczdan G\u00fcvenli\u011fi:<\/strong> Hesap soyutlama (Account Abstraction) gibi yenilikler, kullan\u0131c\u0131 deneyimini iyile\u015ftirirken, multi-sig ve social recovery gibi \u00f6zellikleri varsay\u0131lan hale getirerek c\u00fczdan g\u00fcvenli\u011fini art\u0131rmay\u0131 hedefliyor.<\/li>\n<\/ul>\n<p>Bu geli\u015fmeler, Web3'\u00fcn gelece\u011finde daha g\u00fcvenli bir ortam vaat ediyor. Ancak kullan\u0131c\u0131 olarak her zaman en g\u00fcncel bilgilere sahip olmak ve proaktif olmak temel sorumlulu\u011fumuz olmaya devam edecek.<\/p>\n<h2 id=\"sonuc-akilli-kontratlarda-guvenli-gezinmek-icin-son-ipuclari\">Sonu\u00e7: Ak\u0131ll\u0131 Kontratlarda G\u00fcvenli Gezinmek \u0130\u00e7in Son \u0130pu\u00e7lar\u0131<\/h2>\n<p>Ak\u0131ll\u0131 kontrat doland\u0131r\u0131c\u0131l\u0131klar\u0131, dijital finans d\u00fcnyas\u0131n\u0131n ka\u00e7\u0131n\u0131lmaz bir par\u00e7as\u0131 gibi g\u00f6r\u00fcnse de, bu makalede tart\u0131\u015ft\u0131\u011f\u0131m\u0131z y\u00f6ntemlerle kendinize sa\u011flam bir kalkan olu\u015fturabilirsiniz. \"Rekt\" olmaktan \"g\u00fcvenli bir kalkan in\u015fa etmeye\" giden bu yolculukta, en \u00f6nemli anahtar kelimelerden biri \"fark\u0131ndal\u0131k\"t\u0131r. Bilin\u00e7li bir kullan\u0131c\u0131 olmak, her zaman kendi ara\u015ft\u0131rman\u0131z\u0131 yapmak (DYOR), projelerin arkas\u0131ndaki ekipleri ve kodlar\u0131 incelemek, g\u00fcvenlik denetim raporlar\u0131na dikkat etmek ve en \u00f6nemlisi c\u00fczdan g\u00fcvenli\u011fi pratiklerini asla aksatmamak, sizi bu tehlikeli sularda g\u00fcvende tutacakt\u0131r. Web3, b\u00fcy\u00fck f\u0131rsatlar sunarken, bu f\u0131rsatlar\u0131 de\u011ferlendirirken tetikte olmak ve \u015f\u00fcpheci bir yakla\u015f\u0131mla hareket etmek hayati \u00f6nem ta\u015f\u0131r. Unutmay\u0131n, herhangi bir yat\u0131r\u0131m yapmadan \u00f6nce, kendinizi en k\u00f6t\u00fc senaryoya haz\u0131rlay\u0131n ve sadece kaybetmeyi g\u00f6ze alabilece\u011finiz miktarlarda yat\u0131r\u0131m yap\u0131n. G\u00fcvenlik, asla taviz verilmemesi gereken bir \u00f6nceliktir.<\/p>\n<h3 id=\"sikca-sorulan-sorular\">S\u0131k\u00e7a Sorulan Sorular<\/h3>\n<ol>\n<li><strong>Ak\u0131ll\u0131 kontrat doland\u0131r\u0131c\u0131l\u0131\u011f\u0131na u\u011frad\u0131\u011f\u0131m\u0131 nas\u0131l anlar\u0131m?<\/strong>\n<p>Genellikle tokenlerinizin aniden de\u011fer kaybetmesi, sat\u0131lamaz hale gelmesi, c\u00fczdan\u0131n\u0131zdan izinsiz transferler yap\u0131lmas\u0131 veya bir DeFi protokol\u00fcnden fon \u00e7ekememeniz durumunda doland\u0131r\u0131ld\u0131\u011f\u0131n\u0131z\u0131 anlayabilirsiniz. Projenin sosyal medya hesaplar\u0131 kapat\u0131l\u0131rsa veya ekip ortadan kaybolursa bu da g\u00fc\u00e7l\u00fc bir i\u015farettir.<\/p>\n<\/li>\n<li><strong>Doland\u0131r\u0131ld\u0131\u011f\u0131mda ne yapmal\u0131y\u0131m?<\/strong>\n<p>\u00d6ncelikle c\u00fczdan\u0131n\u0131za ba\u011fl\u0131 t\u00fcm \u015f\u00fcpheli izinleri Revoke.cash gibi ara\u00e7larla iptal edin. Durumu ilgili blok zinciri taray\u0131c\u0131s\u0131nda (Etherscan vb.) ve projenin topluluklar\u0131nda (varsa) raporlay\u0131n. Yasal yollara ba\u015fvurmak \u00e7o\u011fu zaman zor olsa da, yerel otoritelerinize ve kripto hukuk firmalar\u0131na dan\u0131\u015fabilirsiniz. Fonlar\u0131n geri d\u00f6nme \u015fans\u0131 genelde d\u00fc\u015f\u00fckt\u00fcr.<\/p>\n<\/li>\n<li><strong>Bir projenin denetlenmi\u015f olmas\u0131 %100 g\u00fcvenli oldu\u011fu anlam\u0131na gelir mi?<\/strong>\n<p>Hay\u0131r, denetimler ak\u0131ll\u0131 kontrat\u0131n bilinen zafiyetlere kar\u015f\u0131 incelendi\u011fini g\u00f6sterir ve g\u00fcvenli\u011fi art\u0131r\u0131r ancak %100 g\u00fcvenlik garantisi vermez. Denetim s\u0131ras\u0131nda g\u00f6zden ka\u00e7an bir zafiyet olabilir veya projenin denetim sonras\u0131 kodunda de\u011fi\u015fiklikler yap\u0131lm\u0131\u015f olabilir. Ayr\u0131ca, denetim raporunda bulunan kritik sorunlar\u0131n ger\u00e7ekten giderildi\u011fini do\u011frulamak \u00f6nemlidir.<\/p>\n<\/li>\n<li><strong>Anonim ekiplerle \u00e7al\u0131\u015fan projelere g\u00fcvenmeli miyim?<\/strong>\n<p>Anonimlik, Web3'\u00fcn ruhunda vard\u0131r ve bir\u00e7ok ba\u015far\u0131l\u0131 anonim proje bulunmaktad\u0131r. Ancak, anonim ekiplerde rug pull riski daha y\u00fcksektir \u00e7\u00fcnk\u00fc hesap verebilirlik daha d\u00fc\u015f\u00fckt\u00fcr. E\u011fer bir proje anonimse, di\u011fer t\u00fcm g\u00fcvenlik kontrollerini (kod denetimi, topluluk aktivitesi, tokenomik, yol haritas\u0131) \u00e7ok daha detayl\u0131 bir \u015fekilde yapman\u0131z gerekir. \u00c7ok dikkatli olun.<\/p>\n<\/li>\n<li><strong>MEV sald\u0131r\u0131lar\u0131 ak\u0131ll\u0131 kontrat doland\u0131r\u0131c\u0131l\u0131\u011f\u0131 m\u0131d\u0131r?<\/strong>\n<p>MEV (Miner Extractable Value) sald\u0131r\u0131lar\u0131 teknik olarak do\u011frudan ak\u0131ll\u0131 kontrat doland\u0131r\u0131c\u0131l\u0131\u011f\u0131 de\u011fildir, daha \u00e7ok blok zinciri i\u015flemlerinin s\u0131ralanmas\u0131yla ilgili bir arbitraj veya manip\u00fclasyon t\u00fcr\u00fcd\u00fcr. Ancak, \u00f6zellikle front-running (\u00f6nce ko\u015fma) gibi MEV teknikleri, kullan\u0131c\u0131lar\u0131n bekledi\u011finden daha k\u00f6t\u00fc fiyatlarla i\u015flem yapmas\u0131na neden olabilir ve bu da bir t\u00fcr \"gizli\" kay\u0131p anlam\u0131na gelebilir. Dolayl\u0131 olarak kullan\u0131c\u0131 zarar\u0131na yol a\u00e7abilirler.<\/p>\n<\/li>\n<\/ol>\n<p><\/body><\/p>\n","protected":false},"excerpt":{"rendered":"Rekt Olmaktan Kalkan \u0130n\u015fa Etmeye: Ak\u0131ll\u0131 Kontrat Doland\u0131r\u0131c\u0131l\u0131klar\u0131yla M\u00fccadelem Kripto para piyasalar\u0131nda &#8220;rekt&#8221; olmak, bir yat\u0131r\u0131m\u0131n de\u011ferinin b\u00fcy\u00fck&hellip;","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-31284","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v25.3.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Kripto para piyasalar\u0131nda &quot;rekt&quot; olmak, bir yat\u0131r\u0131m\u0131n de\u011ferinin b\u00fcy\u00fck oranda d\u00fc\u015fmesi veya t...<\/title>\n<meta name=\"description\" content=\"Kripto para piyasalar\u0131nda &quot;rekt&quot; olmak, bir yat\u0131r\u0131m\u0131n de\u011ferinin b\u00fcy\u00fck oranda d\u00fc\u015fmesi veya tamamen kaybedilmesi anlam\u0131na gelir. Bu deneyim, ne yaz\u0131k ki, bir\u00e7ok Web3 kullan\u0131c\u0131s\u0131n\u0131n ak\u0131ll\u0131 kontrat doland\u0131r\u0131c\u0131l\u0131klar\u0131 y\u00fcz\u00fcnden ya\u015fad\u0131\u011f\u0131 ac\u0131 bir ger\u00e7ektir. Ancak bu makale, sadece ac\u0131 hikayeleri anlatmakla kalmayacak; ayn\u0131 zamanda bu t\u00fcr risklere kar\u015f\u0131 nas\u0131l bir kalkan in\u015fa edece\u011fimizi, kendimizi ve varl\u0131klar\u0131m\u0131z\u0131 nas\u0131l koruyaca\u011f\u0131m\u0131z\u0131 ad\u0131m ad\u0131m ele alacak. Ak\u0131ll\u0131 kontratlar\u0131n karma\u015f\u0131k d\u00fcnyas\u0131nda g\u00fcvenle gezinmek ve doland\u0131r\u0131c\u0131lar\u0131n tuza\u011f\u0131na d\u00fc\u015fmemek i\u00e7in bilmeniz gereken her \u015feyi burada bulacaks\u0131n\u0131z.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fatihsoysal.com\/blog\/kripto-para-piyasalarinda-rekt-olmak-bir-yatirimin-degerinin-buyuk-oranda-dusmesi-veya-t\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kripto para piyasalar\u0131nda &quot;rekt&quot; olmak, bir yat\u0131r\u0131m\u0131n de\u011ferinin b\u00fcy\u00fck oranda d\u00fc\u015fmesi veya t...\" \/>\n<meta property=\"og:description\" content=\"Kripto para piyasalar\u0131nda &quot;rekt&quot; olmak, bir yat\u0131r\u0131m\u0131n de\u011ferinin b\u00fcy\u00fck oranda d\u00fc\u015fmesi veya tamamen kaybedilmesi anlam\u0131na gelir. 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Ak\u0131ll\u0131 kontratlar\u0131n karma\u015f\u0131k d\u00fcnyas\u0131nda g\u00fcvenle gezinmek ve doland\u0131r\u0131c\u0131lar\u0131n tuza\u011f\u0131na d\u00fc\u015fmemek i\u00e7in bilmeniz gereken her \u015feyi burada bulacaks\u0131n\u0131z.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fatihsoysal.com\/blog\/kripto-para-piyasalarinda-rekt-olmak-bir-yatirimin-degerinin-buyuk-oranda-dusmesi-veya-t\/\" \/>\n<meta property=\"og:site_name\" content=\"Kodlar\u0131n Gizemli D\u00fcnyas\u0131\" \/>\n<meta property=\"article:published_time\" content=\"2025-10-08T04:31:39+00:00\" \/>\n<meta name=\"author\" content=\"Fatih Soysal\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Yazan:\" \/>\n\t<meta name=\"twitter:data1\" content=\"Fatih Soysal\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tahmini okuma s\u00fcresi\" \/>\n\t<meta name=\"twitter:data2\" content=\"24 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/kripto-para-piyasalarinda-rekt-olmak-bir-yatirimin-degerinin-buyuk-oranda-dusmesi-veya-t\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/kripto-para-piyasalarinda-rekt-olmak-bir-yatirimin-degerinin-buyuk-oranda-dusmesi-veya-t\/\"},\"author\":{\"name\":\"Fatih Soysal\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"headline\":\"Kripto para piyasalar\u0131nda &#8220;rekt&#8221; olmak, bir yat\u0131r\u0131m\u0131n de\u011ferinin b\u00fcy\u00fck oranda d\u00fc\u015fmesi veya t&#8230;\",\"datePublished\":\"2025-10-08T04:31:39+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/kripto-para-piyasalarinda-rekt-olmak-bir-yatirimin-degerinin-buyuk-oranda-dusmesi-veya-t\/\"},\"wordCount\":4424,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/kripto-para-piyasalarinda-rekt-olmak-bir-yatirimin-degerinin-buyuk-oranda-dusmesi-veya-t\/#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/kripto-para-piyasalarinda-rekt-olmak-bir-yatirimin-degerinin-buyuk-oranda-dusmesi-veya-t\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/kripto-para-piyasalarinda-rekt-olmak-bir-yatirimin-degerinin-buyuk-oranda-dusmesi-veya-t\/\",\"name\":\"Kripto para piyasalar\u0131nda \\\"rekt\\\" olmak, bir yat\u0131r\u0131m\u0131n de\u011ferinin b\u00fcy\u00fck oranda d\u00fc\u015fmesi veya t...\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\"},\"datePublished\":\"2025-10-08T04:31:39+00:00\",\"description\":\"Kripto para piyasalar\u0131nda \\\"rekt\\\" olmak, bir yat\u0131r\u0131m\u0131n de\u011ferinin b\u00fcy\u00fck oranda d\u00fc\u015fmesi veya tamamen kaybedilmesi anlam\u0131na gelir. 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