After reports the discovery of security holes in the Android OS that allows people to tap the login and password easily, Google is rumored to currently working hard to fix these flaws. This security hole in Android applications that synchronize with a server on the internet.
To fix this security hole is found not necessary updates on the user's device. Thus Google Android handset makers or vendors do not have to send the package to update to the device around 99,7% still use Android OS version 2.3.3 or underneath.