If you want to further personalise your secure lock settings head into your Settings > Lock Screen > Secure Lock Settings > Enter your passcode > toggle off/ on your preferred settings.

Deadbolt. This lock type is considered to be the most secure one. These locks are sturdy and really hard to break. They can be single-cylinder or double-cylinder.

You can set up a screen lock to help secure your Android phone or tablet from unauthorized access. Each time you turn on your device or wake up the screen, you'll be asked to unlock your device, usually with a PIN, pattern, or password. On some devices, you can unlock with your fingerprint.

phrase [PHRASE after verb] If something or someone is kept under lock and key, they are in a container or room which has been securely locked. The books were normally kept under lock and key in the library vault. He is currently under lock and key at Eastmoor secure unit in Leeds.