Your Android device still asks you to enter your PIN from time to time. Shoulder surfing has become a common modus operandi of phone snatchers.

Locking apps is a good way to keep others from accessing private data when you let them use your devices, but the exact process depends on your device.

Kurt “CyberGuy" Knutsson shows you how to update your password, PIN or pattern on your Android to keep your device safe and secure from hackers.

So if you are in public (non trusted area), you will be prompted to enter your PIN to unlock your device, but if you wake the display again within two minutes, you won't have to enter the PIN again.