2013-11-05 Android 4.4 KitKat Security Enhancements – xda-developers android kitkat http://www.xda-developers.com/android/android-4-4-security-enhancements/ SELinux in Enforce Mode Support for Elliptic Curve Cryptography (ECDSA) Signing keys in AndroidKeyStore SSL CA Certificate Warnings Automated Buffer Overflow Detection Google Certificate Pinning