{"id":29685,"date":"2025-06-04T17:00:23","date_gmt":"2025-06-04T16:00:23","guid":{"rendered":"https:\/\/vanleeuwenlawfirm.eu\/tr\/?p=29685"},"modified":"2025-06-04T17:06:20","modified_gmt":"2025-06-04T16:06:20","slug":"cihaz-guvenligi","status":"publish","type":"post","link":"https:\/\/vanleeuwenlawfirm.eu\/tr\/teknoloji-ve-dijital\/siber-ve-veri-sorusturmalari\/siber-guvenlik-savunmasi-ve-muhendisligi\/cihaz-guvenligi\/","title":{"rendered":"Cihaz G\u00fcvenli\u011fi"},"content":{"rendered":"\t\t
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Siber Savunma ve M\u00fchendislik (Cyber Defence & Engineering – CDE) kapsam\u0131nda cihaz g\u00fcvenli\u011fi, i\u015f istasyonlar\u0131, diz\u00fcst\u00fc bilgisayarlar, ak\u0131ll\u0131 telefonlar, tabletler ve Nesnelerin \u0130nterneti (IoT) cihazlar\u0131 gibi t\u00fcm u\u00e7 noktalar\u0131n teknik ve operasyonel tehditlere kar\u015f\u0131 korunmas\u0131na odaklan\u0131r. Temel uygulamalar aras\u0131nda cihazda saklanan verilerin \u015fifrelenmesi, g\u00fc\u00e7l\u00fc kimlik do\u011frulama y\u00f6ntemlerinin uygulanmas\u0131, g\u00fcncellemelerin ve yamalar\u0131n s\u00fcrekli y\u00f6netimi ile cihaz davran\u0131\u015flar\u0131n\u0131n ger\u00e7ek zamanl\u0131 izlenmesi yer al\u0131r. \u00c7ok katmanl\u0131 g\u00fcvenlik mimarisi kullan\u0131larak, yetkisiz eri\u015fim, cihaz i\u015flevselli\u011finin bozulmas\u0131 veya cihaz\u0131n a\u011fdaki di\u011fer sistemlere sald\u0131r\u0131 noktas\u0131 olarak kullan\u0131lmas\u0131 engellenir. Cihaz g\u00fcvenli\u011fi, sahtekarl\u0131k risklerinin y\u00f6netiminde kritik bir unsur olup, her u\u00e7 nokta politika, teknoloji ve operasyonel prosed\u00fcrlerle entegre edilir.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Finansal Usuls\u00fczl\u00fckler<\/h4>

Finansal raporlama ve muhasebe sistemlerine y\u00f6nelik cihazlar, say\u0131sal verileri manip\u00fcle etmek isteyen sald\u0131rganlar i\u00e7in cazip hedeflerdir. Tam disk \u015fifrelemesi ve dosya d\u00fczeyinde \u015fifreleme, cihaz\u0131n fiziksel kayb\u0131 veya \u00e7al\u0131nmas\u0131 durumunda kritik verilerin korunmas\u0131n\u0131 sa\u011flar. Rol tabanl\u0131 eri\u015fim kontrol\u00fc (RBAC), y\u00f6netim mod\u00fcllerine eri\u015fimi s\u0131n\u0131rlar ve Just-In-Time (JIT) eri\u015fim, y\u00fcksek ayr\u0131cal\u0131klar\u0131n sadece gerekli s\u00fcreyle verilmesini sa\u011flar. Endpoint Detection and Response (EDR) ajanlar\u0131, s\u00fcre\u00e7 davran\u0131\u015flar\u0131n\u0131 ve a\u011f trafi\u011fini s\u00fcrekli izleyerek, yanal hareketlilik veya yetkisiz betik \u00e7al\u0131\u015ft\u0131rma gibi finansal raporlar\u0131 de\u011fi\u015ftirmeye y\u00f6nelik aktiviteleri tespit eder. Ayr\u0131ca, \u00e7evrimd\u0131\u015f\u0131 yedekler hash do\u011frulamas\u0131 ile b\u00fct\u00fcnl\u00fck a\u00e7\u0131s\u0131ndan otomatik olarak kontrol edilerek, herhangi bir istenmeyen de\u011fi\u015fiklik an\u0131nda tespit edilir ve geri y\u00fcklenir.<\/p>

Doland\u0131r\u0131c\u0131l\u0131k<\/h4>

Cihazlarla ilgili doland\u0131r\u0131c\u0131l\u0131k, kimlik bilgisi h\u0131rs\u0131zl\u0131\u011f\u0131, komuta ve kontrol merkezleriyle ileti\u015fim ve yanal hareketlilik gibi tekniklerle ortaya \u00e7\u0131kar; bu sayede hassas sistemlere eri\u015fim sa\u011flan\u0131r. Donan\u0131m tabanl\u0131 tokenler veya biyometrik fakt\u00f6rlerle \u00e7ok fakt\u00f6rl\u00fc kimlik do\u011frulama (MFA), kimlik av\u0131 ve tu\u015f kaydedicilere kar\u015f\u0131 koruma sa\u011flar. Trusted Platform Module (TPM) ile donan\u0131m b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fcn do\u011frulanmas\u0131, cihaz manip\u00fclasyonlar\u0131n\u0131 engeller. Davran\u0131\u015fsal biyometri algoritmalar\u0131, yazma stili, fare hareketleri ve kullan\u0131m desenlerindeki sapmalar\u0131 analiz ederek otomatik anormallik tespiti yapar. \u015e\u00fcpheli aktivite tespit edildi\u011finde, EDR sistemi cihaz\u0131 izole eder; cihaz a\u011fdan ge\u00e7ici olarak \u00e7\u0131kar\u0131l\u0131r ve daha ileri analiz i\u00e7in adli kopya olu\u015fturulur.<\/p>

R\u00fc\u015fvet<\/h4>

Yolsuzluk ama\u00e7l\u0131 dijital uygulamalar, yolsuz i\u00e7 ki\u015filer veya ele ge\u00e7irilmi\u015f cihazlar taraf\u0131ndan sat\u0131n alma uygulamalar\u0131 veya faturalama yaz\u0131l\u0131mlar\u0131nda manip\u00fclasyon yapmay\u0131 hedefler. Sat\u0131n alma ve faturalama mod\u00fclleri i\u00e7in donan\u0131m tabanl\u0131 \u015fifreleme, g\u00fcvenli \u00f6ny\u00fckleme ve firmware b\u00fct\u00fcnl\u00fc\u011f\u00fc kontrolleri uygulanarak k\u00f6t\u00fc ama\u00e7l\u0131 yaz\u0131l\u0131m kurulumu engellenir. Beyaz liste uygulama kontrol\u00fc ve \u00e7ekirdek seviye g\u00fcvenlik politikalar\u0131, yetkisiz \u00e7al\u0131\u015ft\u0131r\u0131labilir dosyalar\u0131n kurulmas\u0131n\u0131 engeller. Olay kay\u0131tlar\u0131, donan\u0131m s\u00fcr\u00fcm\u00fc ve g\u00fcvenlik yamalar\u0131 gibi cihaz metadatalar\u0131yla zenginle\u015ftirilerek, \u015f\u00fcpheli de\u011fi\u015fikliklerin belirli donan\u0131m veya yaz\u0131l\u0131m konfig\u00fcrasyonlar\u0131yla ba\u011flant\u0131s\u0131 do\u011frulan\u0131r.<\/p>

Kara Para Aklama<\/h4>

Uzaktan kontrol edilen \u00f6deme terminalleri veya ak\u0131ll\u0131 telefonlardaki sanal c\u00fczdanlar arac\u0131l\u0131\u011f\u0131yla kara para aklama, kripto anahtarlar\u0131n\u0131n korunmas\u0131n\u0131 gerektirir. G\u00fcvenli Eleman (Secure Element) ve donan\u0131m g\u00fcvenlik mod\u00fclleri (HSM), \u00f6zel anahtarlar\u0131 izole ve korumal\u0131 ortamlarda saklayarak cihaz\u0131n ele ge\u00e7irilmesi durumunda anahtar h\u0131rs\u0131zl\u0131\u011f\u0131n\u0131 \u00f6nler. Mobil Cihaz Y\u00f6netimi (MDM) platformlar\u0131, \u015fifreleme politikalar\u0131n\u0131 zorunlu k\u0131lar ve sadece onayl\u0131 ma\u011fazalardan uygulama kurulmas\u0131na izin verir. Runtime Application Self-Protection (RASP) mekanizmalar\u0131, \u00f6deme uygulamalar\u0131nda bellek manip\u00fclasyonu giri\u015fimlerini tespit eder. \u0130\u015flem desenleri cihaz \u00fczerinde \u015f\u00fcpheli davran\u0131\u015flar a\u00e7\u0131s\u0131ndan filtrelenir; yaln\u0131zca do\u011frulanm\u0131\u015f kay\u0131tlar merkezi sistemlere iletilir.<\/p>

Yolsuzluk<\/h4>

Dijital yolsuzluk, komisyon raporlar\u0131, uyum panolar\u0131 veya masa\u00fcst\u00fc\/tablet cihazlarda \u00e7al\u0131\u015fan y\u00f6netim ara\u00e7lar\u0131ndaki gizli de\u011fi\u015fiklikleri i\u00e7erir. Cihaz g\u00fcvenli\u011fi, sadece eklenen ve kriptografik olarak korunan denetim kay\u0131tlar\u0131 kullanarak, her de\u011fi\u015fikli\u011fin belirli donan\u0131m kimliklerine ve sertifikalara dayal\u0131 kullan\u0131c\u0131 profillerine ba\u011flanmas\u0131n\u0131 sa\u011flar. Uygulama sandboxing, yolsuz kodun kritik uygulamalara s\u0131zmas\u0131n\u0131 engeller. Sistem ve uygulama dosyalar\u0131n\u0131n d\u00fczenli b\u00fct\u00fcnl\u00fck kontrolleri uyumsuzluklar\u0131 tespit eder. Anormallik tespit edildi\u011finde, otomatik karantina ba\u015flat\u0131l\u0131r ve kal\u0131c\u0131 adli kopya olu\u015fturulur.<\/p>

Uluslararas\u0131 Yapt\u0131r\u0131m \u0130hlalleri<\/h4>

Yapt\u0131r\u0131mlara tabi taraflarla ileti\u015fim kuran cihazlar, uyum a\u00e7\u0131s\u0131ndan ciddi riskler ta\u015f\u0131r. Politikaya dayal\u0131 u\u00e7 nokta eri\u015fim kontrol\u00fc (NAC), cihazlar\u0131n sadece onayl\u0131 IP aral\u0131klar\u0131 ve bulut hizmetlerine eri\u015fimini sa\u011flar. Cihaz \u00fczerindeki SSL\/TLS trafi\u011fi yakalan\u0131r ve sertifika y\u00f6netimiyle, t\u00fcm \u00e7\u0131k\u0131\u015f istekleri yapt\u0131r\u0131m listeleri ve g\u00f6zetim listeleri a\u00e7\u0131s\u0131ndan taran\u0131r. Mobil Tehdit Savunmas\u0131 (MTD) m\u00fc\u015fterileri, yapt\u0131r\u0131m b\u00f6lgelerindeki komuta ve kontrol altyap\u0131lar\u0131 ile anormal beacon aktivitelerini alg\u0131lar. \u0130hlal tespit edildi\u011finde, cihaz an\u0131nda engellenir ve denetim raporu ilgili d\u00fczenleyici kurumlara sunulmak \u00fczere olu\u015fturulur.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\r\n \r\n M\u00fczakere\r\n <\/a>\r\n<\/h2><\/div>\n <\/div>\n\n<\/div>\n\n\n \n <\/div>\n\n<\/article> \r\n \r\n <\/div>\r\n \r\n \r\n<\/div>\r\n\r\n \t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Siber Savunma ve M\u00fchendislik (Cyber Defence & Engineering – CDE) kapsam\u0131nda cihaz g\u00fcvenli\u011fi, i\u015f istasyonlar\u0131, diz\u00fcst\u00fc bilgisayarlar, ak\u0131ll\u0131 telefonlar, tabletler ve Nesnelerin \u0130nterneti (IoT) cihazlar\u0131 gibi t\u00fcm u\u00e7 noktalar\u0131n teknik ve operasyonel tehditlere kar\u015f\u0131 korunmas\u0131na odaklan\u0131r. Temel uygulamalar aras\u0131nda cihazda saklanan verilerin \u015fifrelenmesi, g\u00fc\u00e7l\u00fc kimlik do\u011frulama y\u00f6ntemlerinin uygulanmas\u0131, g\u00fcncellemelerin ve yamalar\u0131n s\u00fcrekli y\u00f6netimi ile cihaz davran\u0131\u015flar\u0131n\u0131n ger\u00e7ek zamanl\u0131 izlenmesi yer al\u0131r. \u00c7ok katmanl\u0131 g\u00fcvenlik mimarisi kullan\u0131larak, yetkisiz eri\u015fim, cihaz i\u015flevselli\u011finin bozulmas\u0131 veya cihaz\u0131n a\u011fdaki di\u011fer sistemlere sald\u0131r\u0131 noktas\u0131 olarak kullan\u0131lmas\u0131 engellenir. Cihaz g\u00fcvenli\u011fi, sahtekarl\u0131k risklerinin y\u00f6netiminde kritik bir unsur olup, her u\u00e7 nokta politika, teknoloji ve operasyonel prosed\u00fcrlerle entegre edilir.<\/p>\n","protected":false},"author":1,"featured_media":28953,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[173],"tags":[],"class_list":["post-29685","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-siber-guvenlik-savunmasi-ve-muhendisligi"],"acf":[],"_links":{"self":[{"href":"https:\/\/vanleeuwenlawfirm.eu\/tr\/wp-json\/wp\/v2\/posts\/29685","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vanleeuwenlawfirm.eu\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vanleeuwenlawfirm.eu\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vanleeuwenlawfirm.eu\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vanleeuwenlawfirm.eu\/tr\/wp-json\/wp\/v2\/comments?post=29685"}],"version-history":[{"count":4,"href":"https:\/\/vanleeuwenlawfirm.eu\/tr\/wp-json\/wp\/v2\/posts\/29685\/revisions"}],"predecessor-version":[{"id":29689,"href":"https:\/\/vanleeuwenlawfirm.eu\/tr\/wp-json\/wp\/v2\/posts\/29685\/revisions\/29689"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vanleeuwenlawfirm.eu\/tr\/wp-json\/wp\/v2\/media\/28953"}],"wp:attachment":[{"href":"https:\/\/vanleeuwenlawfirm.eu\/tr\/wp-json\/wp\/v2\/media?parent=29685"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vanleeuwenlawfirm.eu\/tr\/wp-json\/wp\/v2\/categories?post=29685"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vanleeuwenlawfirm.eu\/tr\/wp-json\/wp\/v2\/tags?post=29685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}