[PDF]iOS Keychain Weakness FAQ - Further Information on iOS Password ProtectioniOS Keychain Weakness FAQ Further Information on iOS Password Protection Jens Heider, Matthias Boll Fraunhofer Institute for Secure Information Technology (SIT) November 22, 2011 Revision history 1.5 2011-11-22 updated: 2.1 Which versions of iOS are affected by the attack method?, p. 3 iOS 5 is affected updated: 2.12 Is there a patch available?, p. 7 iOS 5 provides some fixes updated: 2.13 What ar
