{"id":10028,"date":"2026-10-24T15:14:26","date_gmt":"2026-10-24T12:14:26","guid":{"rendered":"https:\/\/www.yunuskaytan.com\/?p=10022"},"modified":"2026-10-24T15:14:26","modified_gmt":"2026-10-24T12:14:26","slug":"phishing-oltalama-nedir-korunma","status":"publish","type":"post","link":"https:\/\/www.yunuskaytan.com\/en\/yk\/phishing-oltalama-nedir-korunma\/","title":{"rendered":"Phishing (Oltalama) Sald\u0131r\u0131s\u0131 Nedir? Nas\u0131l Anla\u015f\u0131l\u0131r ve Nas\u0131l Korunulur?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Phishing, T\u00fcrk\u00e7e kar\u015f\u0131l\u0131\u011f\u0131yla <strong>oltalama<\/strong>, sald\u0131rganlar\u0131n kendilerini g\u00fcvenilir bir kurum ya da ki\u015fi gibi g\u00f6stererek kullan\u0131c\u0131dan \u015fifre, kart bilgisi veya ba\u015fka hassas veriyi almaya \u00e7al\u0131\u015ft\u0131\u011f\u0131 bir sosyal m\u00fchendislik y\u00f6ntemidir. Teknik bir a\u00e7\u0131ktan \u00e7ok insan fakt\u00f6r\u00fcn\u00fc hedef ald\u0131\u011f\u0131 i\u00e7in hala en yayg\u0131n sald\u0131r\u0131 t\u00fcrlerinden biridir.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nas\u0131l \u00c7al\u0131\u015f\u0131r?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tipik bir sald\u0131r\u0131 \u015fu ad\u0131mlarla ilerler:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Sald\u0131rgan banka, kargo firmas\u0131 veya bir internet hizmeti gibi g\u00f6r\u00fcnen bir e-posta ya da mesaj g\u00f6nderir.<\/li>\n\n<li>Mesaj acil bir durum yarat\u0131r: &#8220;Hesab\u0131n\u0131z ask\u0131ya al\u0131nacak&#8221;, &#8220;Paketiniz teslim edilemedi&#8221; gibi.<\/li>\n\n<li>Ba\u011flant\u0131ya t\u0131klayan kullan\u0131c\u0131 ger\u00e7e\u011fine \u00e7ok benzeyen sahte bir siteye gider.<\/li>\n\n<li>Kullan\u0131c\u0131 kullan\u0131c\u0131 ad\u0131 ve \u015fifresini girer, bilgiler sald\u0131rgan\u0131n eline ge\u00e7er.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Phishing T\u00fcrleri<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>E-posta phishing:<\/strong> Toplu olarak g\u00f6nderilen genel sahte e-postalard\u0131r.<\/li>\n\n<li><strong>Hedefli oltalama (spear phishing):<\/strong> Belirli bir ki\u015fiye, onun bilgileri kullan\u0131larak haz\u0131rlan\u0131r. \u00c7ok daha inand\u0131r\u0131c\u0131d\u0131r.<\/li>\n\n<li><strong>SMS ile oltalama (smishing):<\/strong> K\u0131sa mesajla gelen sahte ba\u011flant\u0131lard\u0131r.<\/li>\n\n<li><strong>Telefonla oltalama (vishing):<\/strong> Arayan ki\u015fi banka g\u00f6revlisi gibi davran\u0131r.<\/li>\n\n<li><strong>Sahte web siteleri:<\/strong> Ger\u00e7ek siteyle neredeyse ayn\u0131 g\u00f6r\u00fcnen alan adlar\u0131d\u0131r.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Phishing Belirtileri<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bir mesajda \u015fu i\u015faretlerden biri varsa dikkatli olun:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>G\u00f6nderen adresi uyu\u015fmuyor.<\/strong> G\u00f6r\u00fcnen ad kurumun ad\u0131 olabilir ancak as\u0131l e-posta adresi ba\u015fka bir alan ad\u0131na ait olabilir.<\/li>\n\n<li><strong>Aciliyet ve tehdit dili.<\/strong> &#8220;24 saat i\u00e7inde i\u015flem yapmazsan\u0131z&#8221; gibi bask\u0131 kuran ifadeler.<\/li>\n\n<li><strong>Genel hitap.<\/strong> &#8220;Say\u0131n m\u00fc\u015fteri&#8221; gibi, ad\u0131n\u0131z\u0131 i\u00e7ermeyen mesajlar.<\/li>\n\n<li><strong>\u015e\u00fcpheli ba\u011flant\u0131.<\/strong> Fareyi ba\u011flant\u0131n\u0131n \u00fczerine getirdi\u011finizde g\u00f6r\u00fcnen adres, yaz\u0131lan adresten farkl\u0131d\u0131r.<\/li>\n\n<li><strong>Yaz\u0131m hatalar\u0131<\/strong> ve tuhaf dil kullan\u0131m\u0131.<\/li>\n\n<li><strong>Beklenmeyen ek dosya.<\/strong> \u00d6zellikle <code>.zip<\/code>, <code>.exe<\/code> veya makro i\u00e7eren Office dosyalar\u0131.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Sahte Alan Ad\u0131 \u00d6rne\u011fi<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bir sald\u0131rgan <code>banka.com.tr<\/code> yerine <code>banka-giris.com<\/code> ya da harfleri benzer g\u00f6r\u00fcnen karakterlerle de\u011fi\u015ftirilmi\u015f bir adres kullanabilir. Adres \u00e7ubu\u011fundaki alan ad\u0131n\u0131n, ilk e\u011fik \u00e7izgiden \u00f6nceki k\u0131sm\u0131n\u0131 dikkatle okuyun. Kilit simgesi de tek ba\u015f\u0131na g\u00fcvenlik garantisi de\u011fildir, \u00e7\u00fcnk\u00fc sahte siteler de HTTPS kullanabilir.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nas\u0131l Korunulur?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ba\u011flant\u0131ya t\u0131klamak yerine adresi kendiniz yaz\u0131n<\/strong> ya da kurumun resmi uygulamas\u0131n\u0131 kullan\u0131n.<\/li>\n\n<li><strong>\u0130ki ad\u0131ml\u0131 do\u011frulamay\u0131<\/strong> \u00f6nemli hesaplarda a\u00e7\u0131n. \u015eifreniz \u00e7al\u0131nsa bile hesaba giri\u015fi zorla\u015ft\u0131r\u0131r.<\/li>\n\n<li><strong>Parola y\u00f6neticisi<\/strong> kullan\u0131n. Ger\u00e7ek sitede otomatik doldurma \u00e7al\u0131\u015f\u0131r, sahte sitede \u00e7al\u0131\u015fmaz. Bu da bir uyar\u0131 i\u015faretidir.<\/li>\n\n<li><strong>Her hesapta farkl\u0131 \u015fifre<\/strong> kullan\u0131n.<\/li>\n\n<li>Beklenmeyen eklentileri a\u00e7may\u0131n.<\/li>\n\n<li>Taray\u0131c\u0131 ve i\u015fletim sistemini g\u00fcncel tutun.<\/li>\n\n<li>\u015e\u00fcpheli mesaj\u0131, ilgili kurumu <strong>kendi bildi\u011finiz resmi kanaldan<\/strong> arayarak do\u011frulay\u0131n.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">T\u0131klad\u0131m, \u015eifre Girdim: Ne Yapmal\u0131y\u0131m?<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>O hesab\u0131n \u015fifresini hemen de\u011fi\u015ftirin. Ayn\u0131 \u015fifreyi ba\u015fka yerde kulland\u0131ysan\u0131z onlar\u0131 da de\u011fi\u015ftirin.<\/li>\n\n<li>Bankayla ilgiliyse bankan\u0131z\u0131 aray\u0131p kart\u0131 ve hesab\u0131 kontrol ettirin.<\/li>\n\n<li>\u0130ki ad\u0131ml\u0131 do\u011frulamay\u0131 etkinle\u015ftirin.<\/li>\n\n<li>Bilgisayar\u0131n\u0131zda g\u00fcncel bir g\u00fcvenlik taramas\u0131 yap\u0131n.<\/li>\n\n<li>Olay\u0131 ilgili kuruma ve gerekirse yetkili mercilere bildirin.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Sonu\u00e7<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Phishing&#8217;e kar\u015f\u0131 en g\u00fc\u00e7l\u00fc savunma fark\u0131ndal\u0131kt\u0131r. Bir mesaj sizi aceleye getiriyorsa, durup do\u011frulamak i\u00e7in bir dakika ay\u0131r\u0131n. Bu k\u0131sa bekleyi\u015f \u00e7o\u011fu sald\u0131r\u0131y\u0131 etkisiz hale getirir.<\/p>","protected":false},"excerpt":{"rendered":"<p>Oltalama sald\u0131r\u0131s\u0131n\u0131n nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131, nas\u0131l fark edilece\u011fini ve kendinizi korumak i\u00e7in neler yapabilece\u011finizi \u00f6\u011frenin.<\/p>","protected":false},"author":1,"featured_media":10027,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[229],"tags":[249,67,11,71],"class_list":["post-10028","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-siber-guvenlik","tag-oltalama","tag-phishing","tag-siber-guvenlik","tag-sosyal-muhendislik"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Phishing (Oltalama) Sald\u0131r\u0131s\u0131 Nedir? 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