As we do not want the staff to use the provided tablets for playing games and facebook and watching videos etc, we want to install AppLock (https://play.google.com/store/apps/details?id=com.domobile.applock) or something similar.
My Question is .. Is it possible to overcome the AppLock's Lock by fiddling with the filesystem of the device by connecting it to a PC/Mac - other than by factory resetting the device (which will erase our in-hour ERP apps anyway).