{"id":7743,"date":"2026-10-20T04:38:24","date_gmt":"2026-10-20T01:38:24","guid":{"rendered":"https:\/\/uzmanposta.com\/blog\/?p=7743"},"modified":"2026-10-23T18:37:23","modified_gmt":"2026-10-23T15:37:23","slug":"golge-it-shadow-it-calisanlarin-kisisel-mail-ve-depolama-alani-kullanimi-sirketinizi-nasil-riske-atiyor","status":"publish","type":"post","link":"https:\/\/uzmanposta.com\/blog\/golge-it-shadow-it-calisanlarin-kisisel-mail-ve-depolama-alani-kullanimi-sirketinizi-nasil-riske-atiyor\/","title":{"rendered":"G\u00f6lge IT (Shadow IT): \u00c7al\u0131\u015fanlar\u0131n Ki\u015fisel Mail ve Depolama Alan\u0131 Kullan\u0131m\u0131 \u015eirketinizi Nas\u0131l Riske At\u0131yor?"},"content":{"rendered":"\n

Kullan\u0131c\u0131lar\u0131n kurumsal a\u011f altyap\u0131s\u0131 \u00fczerinden ki\u015fisel e-posta hesaplar\u0131na ve depolama alanlar\u0131na eri\u015fimine izin veren BT birimleri, kurumlar\u0131n\u0131 \u00e7e\u015fitli a\u00e7\u0131lardan riske atmaktad\u0131r. Ancak bu risklere ra\u011fmen, ki\u015fisel e-posta ve depolama alanlar\u0131n\u0131n kullan\u0131m\u0131 yayg\u0131n bir uygulamad\u0131r. Bir\u00e7ok kurum, bu durumun do\u011furabilece\u011fi sonu\u00e7lar\u0131n fark\u0131nda de\u011fildir.<\/p>\n\n\n\n

Shadow IT (G\u00f6lge IT) Nedir?<\/h2>\n\n\n\n

G\u00f6lge BT (Shadow IT); BT departman\u0131n\u0131n bilgisi, onay\u0131 ve deste\u011fi olmaks\u0131z\u0131n her t\u00fcrl\u00fc uygulaman\u0131n, cihaz\u0131n, hizmetin, teknolojinin, \u00e7\u00f6z\u00fcm\u00fcn ve altyap\u0131n\u0131n yetkisiz kullan\u0131m\u0131d\u0131r. DevOps taraf\u0131ndan olu\u015fturulan bir proje veya bir kullan\u0131c\u0131n\u0131n kurumsal bir bulut uygulamas\u0131 arac\u0131l\u0131\u011f\u0131yla \u00fc\u00e7\u00fcnc\u00fc taraf bir hizmete ba\u011flanmas\u0131 bile g\u00f6lge BT kapsam\u0131na girer.<\/p>\n\n\n\n

G\u00f6lge BT’nin b\u00fcy\u00fck bir k\u0131sm\u0131, bulut tabanl\u0131 bireysel kullan\u0131ma y\u00f6nelik uygulamalardan olu\u015fur. Netskope taraf\u0131ndan yap\u0131lan bir ara\u015ft\u0131rmaya g\u00f6re, kurumlarda kullan\u0131lan bulut uygulamalar\u0131n\u0131n %97’sinin g\u00f6lge BT kapsam\u0131ndad\u0131r. Yani y\u00f6netilmeyen ve genellikle \u00e7al\u0131\u015fanlarca kendi inisiyatifleri ile benimsenen uygulamalar oldu\u011funu ortaya koymu\u015ftur. Bu, h\u0131zla b\u00fcy\u00fcyen, yayg\u0131n ve ciddi riskler bar\u0131nd\u0131ran bir sorundur.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

McAfee Cloud Adoption and Risk Report’a g\u00f6re, pandemide hibrit ve uzaktan \u00e7al\u0131\u015fma d\u00fczenine ge\u00e7ilmesiyle birlikte bulut hizmetlerinin genel kullan\u0131m\u0131 %50 oran\u0131nda artt\u0131. \u0130\u015f birli\u011fi hizmetlerindeki art\u0131\u015f ise %600’\u00fc buldu. Ayn\u0131 d\u00f6nemde, bulut hesaplar\u0131na y\u00f6nelik d\u0131\u015f sald\u0131r\u0131lar \u00e7ok daha b\u00fcy\u00fck bir s\u0131\u00e7rama g\u00f6stererek %630 oran\u0131nda artt\u0131. T\u00fcm bunlar, g\u00f6lge BT’yi \u00e7ok daha acil ve \u00f6nemli bir sorun haline getirdi.<\/p>\n\n\n\n

Ki\u015fisel E-posta Kullan\u0131m\u0131 Kurumlar \u0130\u00e7in Hangi Riskleri Ta\u015f\u0131r?<\/h2>\n\n\n\n

\u00c7al\u0131\u015fanlar\u0131n ki\u015fisel e-posta hesaplar\u0131n\u0131 i\u015f amac\u0131yla kullanmas\u0131, kurumsal verilerin \u015firket denetimi d\u0131\u015f\u0131na \u00e7\u0131kmas\u0131na ve \u00f6nemli yaz\u0131\u015fmalar\u0131n kay\u0131t alt\u0131na al\u0131namamas\u0131na neden olur. Ayr\u0131ca bu hesaplar \u00fczerinden ger\u00e7ekle\u015ftirilen oltalama sald\u0131r\u0131lar\u0131 ve k\u00f6t\u00fc ama\u00e7l\u0131 yaz\u0131l\u0131mlar da kurumlar\u0131n bilgi g\u00fcvenli\u011fini tehdit edebilir.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Kurumsal Verilerin Ki\u015fisel E-posta Yoluyla S\u0131zd\u0131r\u0131lmas\u0131<\/h3>\n\n\n\n

Kurumsal a\u011f \u00fczerinden ki\u015fisel e-posta kullan\u0131m\u0131na izin verilmesiyle ilgili ilk sorun, bunun ticari s\u0131rlar\u0131n ve di\u011fer fikri m\u00fclkiyetlerin, yaz\u0131\u015fmalara dair hi\u00e7bir kay\u0131t veya denetim izi b\u0131rak\u0131lmaks\u0131z\u0131n kurum d\u0131\u015f\u0131na \u00e7\u0131kmas\u0131na olanak tan\u0131yan bir yol olu\u015fturmas\u0131d\u0131r. Pek \u00e7ok \u015firket, i\u015fverene \u00e7al\u0131\u015fanlar\u0131n e-posta trafi\u011fini izleme yetkisi veren a\u00e7\u0131k bir \u0130nsan Kaynaklar\u0131 politikas\u0131 benimser. Ancak kurum, ki\u015fisel e-posta hesaplar\u0131n\u0131n kullan\u0131m\u0131n\u0131 izlemez veya engellemezse, e-posta izleme politikas\u0131 fiilen etkisiz hale gelir.<\/p>\n\n\n\n

Kurumsal Yaz\u0131\u015fmalar \u00dczerindeki Kontrol\u00fcn Kaybedilmesi<\/h3>\n\n\n\n

Kurumsal a\u011f \u00fczerinden ki\u015fisel e-posta kullan\u0131m\u0131n\u0131n bir di\u011fer riski, \u00e7al\u0131\u015fanlar\u0131n bu hesaplar\u0131 zaman zaman hem ki\u015fisel hem de i\u015fle ilgili e-postalar g\u00f6ndermek i\u00e7in kullanmalar\u0131ndan kaynaklanmaktad\u0131r. \u00c7al\u0131\u015fanlar\u0131n ki\u015fisel hesaplar\u0131ndan ger\u00e7ekle\u015ftirdi\u011fi i\u015fle ilgili yaz\u0131\u015fmalar da hukuki s\u00fcre\u00e7lerde \u00f6nem ta\u015f\u0131yabilir. Ancak bu yaz\u0131\u015fmalar \u015firketin resmi kay\u0131t sistemlerine dahil edilmedi\u011finde, gerekti\u011finde ilgili belgelere ula\u015f\u0131lmas\u0131 zorla\u015fabilir. <\/p>\n\n\n\n

Oltalama (Phishing)<\/h3>\n\n\n\n

Oltalama e-postalar\u0131<\/a>, insanlar\u0131 ki\u015fisel bilgilerini if\u015fa etmeleri i\u00e7in kand\u0131rmaya y\u00f6nelik genel giri\u015fimlerdir. \u00d6rne\u011fin, \u201c\u00dccretsiz bir iPhone kazanma \u015fans\u0131n\u0131z\u0131 \u00f6\u011frenmek i\u00e7in telefon numaran\u0131z\u0131 girin\u201d gibi ifadeler i\u00e7eren e-postalar bu t\u00fcr sald\u0131r\u0131lara \u00f6rnek g\u00f6sterilebilir.<\/p>\n\n\n\n

Hedefli Oltalama (Spear Phishing)<\/h3>\n\n\n\n

Hedefli oltalama e-postalar\u0131 bir \u00f6nceki \u00f6rne\u011fe benzerdir, ancak daha spesifik hedeflere y\u00f6neliktir. \u00d6rne\u011fin, hedefli oltalama (spear phishing) sald\u0131r\u0131s\u0131 ger\u00e7ekle\u015ftiren bir siber sald\u0131rgan, \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131z kuruma ili\u015fkin bilgileri kullanarak do\u011frudan sizi hedef alabilir. \u0130nsan Kaynaklar\u0131 departman\u0131ndan g\u00f6nderilmi\u015f gibi g\u00f6r\u00fcnen sahte bir e-postada, \u00e7al\u0131\u015fan bilgilerinin g\u00fcncellenmesi gerekti\u011fi belirtilerek T.C. kimlik numaran\u0131z veya di\u011fer ki\u015fisel bilgileriniz talep edilebilir.<\/p>\n\n\n\n

K\u00f6t\u00fc Ama\u00e7l\u0131 Yaz\u0131l\u0131m (Malware)<\/h3>\n\n\n\n

Casus yaz\u0131l\u0131mlar ve fidye yaz\u0131l\u0131mlar\u0131<\/a> dahil olmak \u00fczere \u00e7e\u015fitli k\u00f6t\u00fc ama\u00e7l\u0131 yaz\u0131l\u0131m t\u00fcrleri mevcuttur. Bunlar\u0131n hepsi, siber su\u00e7lular\u0131n bilgisayar\u0131n\u0131za fark\u0131nda olmadan indirmenizi sa\u011flamaya \u00e7al\u0131\u015ft\u0131\u011f\u0131 farkl\u0131 yaz\u0131l\u0131m t\u00fcrleridir. K\u00f6t\u00fc ama\u00e7l\u0131 yaz\u0131l\u0131m\u0131 bir kez indirdi\u011finizde, bilgisayar korsanlar\u0131 siz bir fidye \u00f6deyene kadar bilgilerinizi rehin tutabilir ya da istedikleri her t\u00fcrl\u00fc bilgiyi \u00e7al\u0131p dark web\u2019de satabilirler.<\/p>\n\n\n\n

Ki\u015fisel E-posta Kullan\u0131m\u0131ndan Kaynaklanan Riskler Nas\u0131l \u00d6nlenebilir?<\/h2>\n\n\n\n

Kurumlar, ki\u015fisel e-posta hesaplar\u0131n\u0131n kullan\u0131m\u0131ndan kaynaklanan riskleri azaltmak i\u00e7in a\u00e7\u0131k g\u00fcvenlik politikalar\u0131 olu\u015fturmal\u0131d\u0131r. Bu kapsamda, \u00e7al\u0131\u015fanlar\u0131n kurumsal a\u011f \u00fczerinden ki\u015fisel e-posta hesaplar\u0131na eri\u015fimi s\u0131n\u0131rland\u0131r\u0131labilir veya i\u015f ama\u00e7l\u0131 kullan\u0131m\u0131 yasaklanabilir. Ayr\u0131ca \u00e7al\u0131\u015fanlar\u0131n bu politikalar\u0131n gerek\u00e7eleri, veri g\u00fcvenli\u011fi a\u00e7\u0131s\u0131ndan ta\u015f\u0131d\u0131\u011f\u0131 \u00f6nem ve olas\u0131 ihlallerin sonu\u00e7lar\u0131 hakk\u0131nda bilgilendirilmesi gerekir.<\/p>\n\n\n\n

Elbette, riski en aza indirmek ve olas\u0131 ihlalleri izlemek amac\u0131yla g\u00fcvenlik \u00f6nlemleri otomatikle\u015ftirilmedi\u011fi s\u00fcrece, bu politikan\u0131n ger\u00e7ek bir de\u011feri olmaz. G\u00fcvenlik politikalar\u0131n\u0131n uygulanmas\u0131 ve denetlenmesi her zaman kolay olmasa da, T\u00fcrkiye’de faaliyet g\u00f6steren \u015firketlerin \u00f6zellikle 6698 say\u0131l\u0131 Ki\u015fisel Verilerin Korunmas\u0131 Kanunu (KVKK) kapsam\u0131ndaki veri g\u00fcvenli\u011fi y\u00fck\u00fcml\u00fcl\u00fcklerini dikkate almas\u0131 gerekir. Bu do\u011frultuda, ki\u015fisel e-posta hesaplar\u0131 \u00fczerinden ger\u00e7ekle\u015ftirilen veri aktar\u0131mlar\u0131n\u0131 kontrol etmek i\u00e7in geli\u015fmi\u015f engelleme ve filtreleme ara\u00e7lar\u0131ndan yararlan\u0131labilir. Ayr\u0131ca kurumsal a\u011f trafi\u011finin uygun g\u00fcvenlik \u00e7\u00f6z\u00fcmleriyle izlenmesi ve yetkisiz veri payla\u015f\u0131mlar\u0131n\u0131n s\u0131n\u0131rland\u0131r\u0131lmas\u0131, \u015firketlerin bilgi g\u00fcvenli\u011fi \u00fczerindeki kontrol\u00fcn\u00fc g\u00fc\u00e7lendirebilir.<\/p>\n\n\n\n

Ki\u015fisel e-posta hesaplar\u0131 yerine kurumsal e-posta \u00e7\u00f6z\u00fcmlerinin kullan\u0131lmas\u0131 da kurumsal yaz\u0131\u015fmalar\u0131n\u0131n daha g\u00fcvenli ve kontroll\u00fc y\u00fcr\u00fct\u00fclmesine yard\u0131mc\u0131 olabilir. Bu noktada Uzman Posta’n\u0131n Kurumsal E-posta \u00c7\u00f6z\u00fcmleri<\/a>, merkezi y\u00f6netim, kullan\u0131c\u0131 bazl\u0131 yetkilendirme, e-posta trafi\u011finin raporlanmas\u0131 ve g\u00fcvenlik politikalar\u0131n\u0131n uygulanmas\u0131 gibi \u00f6zelliklerle kurumlar\u0131n e-posta ileti\u015fimini y\u00f6netmesini kolayla\u015ft\u0131r\u0131r.<\/p>\n\n\n\n

Ki\u015fisel Bulut Depolama Alanlar\u0131 Kurumsal Verileri Nas\u0131l Riske Atar?<\/h2>\n\n\n\n
\"\"<\/figure>\n\n\n\n

Baz\u0131 kurumlar, \u00e7al\u0131\u015fanlar\u0131n ki\u015fisel bulut depolama hizmetlerini i\u015f amac\u0131yla kullanmas\u0131na izin veren \u201cKendi Bulutunu Getir\u201d (Bring Your Own Cloud – BYOC)<\/a> yakla\u015f\u0131m\u0131n\u0131 benimser. Ancak \u00e7al\u0131\u015fanlar\u0131n gizlilik s\u00f6zle\u015fmesi imzalamas\u0131, kurumsal verilerin ki\u015fisel bulut hesaplar\u0131na kontrols\u00fcz bi\u00e7imde aktar\u0131lmas\u0131n\u0131 \u00f6nlemek i\u00e7in tek ba\u015f\u0131na yeterli de\u011fildir. Bu nedenle veri aktar\u0131m\u0131n\u0131n izlenmesi ve eri\u015fim yetkilerinin s\u0131n\u0131rland\u0131r\u0131lmas\u0131 gibi ek g\u00fcvenlik \u00f6nlemlerine ihtiya\u00e7 duyulur.<\/p>\n\n\n\n

\u00c7al\u0131\u015fan i\u015ften ayr\u0131lsa bile ki\u015fisel bulut hesab\u0131nda saklad\u0131\u011f\u0131 \u015firket dosyalar\u0131na eri\u015fmeye devam edebilir. Bu durum, kurumun hassas bilgiler \u00fczerindeki kontrol\u00fcn\u00fc kaybetmesine neden olabilir. Yasal s\u00fcre\u00e7lerde ise ki\u015fisel bulut hesaplar\u0131n\u0131n \u015firketin kontrol\u00fc d\u0131\u015f\u0131nda olmas\u0131, verilerin korunmas\u0131na ili\u015fkin y\u00fck\u00fcml\u00fcl\u00fcklerin yerine getirilmesini ve belirlenen veri saklama s\u00fcrelerine uyulmas\u0131n\u0131 zorla\u015ft\u0131rabilir.<\/p>\n\n\n\n

Bir di\u011fer yayg\u0131n senaryo ise, ki\u015fisel bulut hesaplar\u0131n\u0131n “gizli” veya “g\u00f6lge” kullan\u0131m\u0131d\u0131r. Yani \u00e7al\u0131\u015fanlar\u0131n, \u015firketin onay\u0131 veya bilgisi olmaks\u0131z\u0131n, i\u015fleriyle ilgili g\u00f6revlerde ki\u015fisel bulut hesaplar\u0131n\u0131 kullanmalar\u0131 durumudur.<\/p>\n\n\n\n

\u015eirketler Ki\u015fisel Bulut Kullan\u0131m\u0131ndan Kaynaklanan Riskleri Nas\u0131l \u00d6nleyebilir?<\/h2>\n\n\n\n

\u015eirketler, ticari s\u0131rlar\u0131n ve di\u011fer hassas kurumsal verilerin hangi sistemlerde, uygulamalarda ve depolama alanlar\u0131nda tutuldu\u011funu belirlemelidir. Bir \u015firket, ticari s\u0131rlar\u0131n\u0131 ve di\u011fer hassas materyallerini tam olarak nerede saklad\u0131\u011f\u0131n\u0131 belirleyemezse, bu bilgileri korumak i\u00e7in ad\u0131mlar atamaz. Ancak bu alanlar tan\u0131mland\u0131ktan sonra kurumsal bilgilerinizi korumaya y\u00f6nelik politikalar geli\u015ftirebilirsiniz.<\/p>\n\n\n\n

Bu kapsamda, \u00e7al\u0131\u015fanlar\u0131n ki\u015fisel bulut hesaplar\u0131n\u0131 i\u015f amac\u0131yla kullan\u0131p kullanamayaca\u011f\u0131na ili\u015fkin kurallar a\u00e7\u0131k\u00e7a belirlenmelidir. Ki\u015fisel hesaplar\u0131n kullan\u0131m\u0131na izin vermeyen \u015firketler, bu hizmetlere eri\u015fimi uygun teknik kontrollerle s\u0131n\u0131rland\u0131rabilir.<\/p>\n\n\n\n

Ki\u015fisel bulut hesaplar\u0131n\u0131n kullan\u0131m\u0131na izin veren \u015firketler ise veri g\u00fcvenli\u011fini sa\u011flamak i\u00e7in a\u015fa\u011f\u0131daki \u00f6nlemleri almal\u0131d\u0131r:<\/p>\n\n\n\n

    \n
  • Kurumsal sistemlerden ki\u015fisel bulut hesaplar\u0131na yap\u0131lan veri aktar\u0131mlar\u0131n\u0131 izlemeli ve kontrol alt\u0131nda tutmal\u0131d\u0131r.<\/li>\n\n\n\n
  • \u015eirketler, hangi \u015firket verilerinin buluta aktar\u0131labilece\u011fini a\u00e7\u0131k\u00e7a belirtmelidir.<\/li>\n\n\n\n
  • Bir \u00e7al\u0131\u015fan\u0131n i\u015ften ayr\u0131lmas\u0131 durumunda, ki\u015fisel bulut hesab\u0131nda bulunan kurumsal verilerin iade edildi\u011fi veya g\u00fcvenli bi\u00e7imde silindi\u011fi do\u011frulanmal\u0131d\u0131r.<\/li>\n<\/ul>\n\n\n\n

    Sonu\u00e7 olarak \u015firketler, ki\u015fisel e-posta ve bulut hesaplar\u0131n\u0131n kullan\u0131m\u0131ndan kaynaklanan riskleri de\u011ferlendirmeli ve buna g\u00f6re gerekli g\u00fcvenlik politikalar\u0131n\u0131 olu\u015fturup uygulamal\u0131d\u0131r.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Kullan\u0131c\u0131lar\u0131n kurumsal a\u011f altyap\u0131s\u0131 \u00fczerinden ki\u015fisel e-posta hesaplar\u0131na ve depolama alanlar\u0131na eri\u015fimine izin veren BT birimleri, kurumlar\u0131n\u0131 \u00e7e\u015fitli a\u00e7\u0131lardan riske atmaktad\u0131r. Ancak bu risklere ra\u011fmen, ki\u015fisel e-posta ve depolama alanlar\u0131n\u0131n kullan\u0131m\u0131 yayg\u0131n bir uygulamad\u0131r. Bir\u00e7ok kurum, bu durumun do\u011furabilece\u011fi sonu\u00e7lar\u0131n fark\u0131nda de\u011fildir. Shadow IT (G\u00f6lge IT) Nedir? G\u00f6lge BT (Shadow IT); BT departman\u0131n\u0131n bilgisi, onay\u0131 […]<\/p>\n","protected":false},"author":2,"featured_media":7744,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[87,86],"tags":[],"class_list":["post-7743","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-e-mail-e-posta","category-guvenlik"],"yoast_head":"\nG\u00f6lge IT (Shadow IT): \u00c7al\u0131\u015fanlar\u0131n Ki\u015fisel Mail ve Depolama Alan\u0131 Kullan\u0131m\u0131 \u015eirketinizi Nas\u0131l Riske At\u0131yor? - Uzman Posta<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/uzmanposta.com\/blog\/golge-it-shadow-it-calisanlarin-kisisel-mail-ve-depolama-alani-kullanimi-sirketinizi-nasil-riske-atiyor\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"G\u00f6lge IT (Shadow IT): \u00c7al\u0131\u015fanlar\u0131n Ki\u015fisel Mail ve Depolama Alan\u0131 Kullan\u0131m\u0131 \u015eirketinizi Nas\u0131l Riske At\u0131yor? - Uzman Posta\" \/>\n<meta property=\"og:description\" content=\"Kullan\u0131c\u0131lar\u0131n kurumsal a\u011f altyap\u0131s\u0131 \u00fczerinden ki\u015fisel e-posta hesaplar\u0131na ve depolama alanlar\u0131na eri\u015fimine izin veren BT birimleri, kurumlar\u0131n\u0131 \u00e7e\u015fitli a\u00e7\u0131lardan riske atmaktad\u0131r. Ancak bu risklere ra\u011fmen, ki\u015fisel e-posta ve depolama alanlar\u0131n\u0131n kullan\u0131m\u0131 yayg\u0131n bir uygulamad\u0131r. Bir\u00e7ok kurum, bu durumun do\u011furabilece\u011fi sonu\u00e7lar\u0131n fark\u0131nda de\u011fildir. Shadow IT (G\u00f6lge IT) Nedir? 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