Google hopes that this will make users more security conscious and lock their smartphones and tablets much more easily.
End to end encryption
The Android 5.0 lollipop will come with data encryption by default.
But this feature will have to be enabled in older smartphones upgrading to Android 5.0 lollipop.
Factory Reset Protection
Though this is not a security feature, it is a first for Android.
Android 5.0 lollipop will be the first version of the OS to include the Factory Reset Protection.
Android 5.0 lollipop gives a feature for input of the owners Google password to wipe the phones data.
This will ensure that only a certified Android smartphone owner can Factory Reset the equipment.
source: www.techworm.net