Built-in App Lock and Hidden Apps Protection

Samsung should provide a built-in App Lock feature that allows users to lock any app, including Settings, using a PIN, password, fingerprint, or other secure method.

Samsung already provides the option to hide apps, but it would be even better to have a separate lock for hidden apps. Hidden apps should remain protected and require authentication before they can be accessed or revealed.

This would improve privacy, security, and user control without requiring third-party apps.