Feature Request for Samsung One UI

Hello Samsung Team,

I really like Samsung Knox and Secure Folder. I have two feature requests that would make Samsung phones even more secure:

Please add an option to lock the Settings app with a PIN, password, or fingerprint. This would prevent other people from changing important settings when we hand them our phone.

Please separate dialer secret codes from the Phone app. The Phone app should only be used for making calls and entering phone numbers. Hidden diagnostic and service codes should be moved to a separate system app or protected behind authentication to improve security.

These features would improve privacy and make users feel more confident when sharing their phones with friends or family.

Thank you for your work on One UI and Samsung Knox.