There is a security issue for all Samsung phones: the thief can acces the Power off/Restart menu. A solution, verified on my A71 is an app from the Google Play, called lockIO, which prevents Power off, Restart or Safe mode without a password!
There is a very nice app, lockIO, which prevents Power off, Restart or Safe mode without a password! You can find it in Google Play ( I'm just a satisfied customer ).Update: It works on my A71, but you cannot install it on a S10, for instance. I don'...