The mystery of the bright spot on Android smartphones revealed

Revoke permissions: Go to your phone's settings, then the "Privacy" or "App permissions" section to see which apps have access to these features and turn them off if necessary.
Uninstall the suspicious app: If the app in question is unfamiliar to you or is no longer in use, it is best to remove it.
Update your phone: Android updates often have security patches built in. Make sure you have the latest version of the operating system.
Turn on Google Play Protect: This built-in Android tool regularly scans apps for possible threats. You can enable it in your phone's security settings.
An essential tool for your security