New software can analyze video of you unlocking your phone — without a view of your screen — and guess your pattern lock within 5 tries.

This post shows how to activate app lock on Redmi Note 8. Read on if you need help securing your apps with a PIN, pattern, password or fingerprint using the MIUI app lock feature.

A study of Android lock patterns shows that many use trivial four-node motions, draw letters with their finger or start in the top left corner.