How to completly disable popup view and split screen

[RandyTW]

I've tried various AppLock apps on Google Play in the hope of preventing unauthorized access to various applications, such as Settings and Googe Play, but they can all be bypassed using popup view and split screen.

I strongly think that popup view and split screen are major security loopholes.

Does anyone know how to disable popup view and split screen, or is there any truly working method/Apps to lock apps on the phone? 

[Glenntech]

I'm not sure you can.
It's all part of the Google Android operating system.
What are you referring to with unauthorised access?

I know Google takes security very seriously, and if those had been deemed a security risk. I'm sure they wouldn't implement those features

[BaronDigo]

Idk what you are talking about too.
But relax, go to settings and search Split. See if that works