Some apps store data such as documents or user profiles on end devices. If this data is not sufficiently protected, other apps may be able to access it. In addition to data that has been consciously stored, this applies to temporary data, such as information stored in the cache. This data can also be easily accessed by unauthorised persons if an employee loses a device, for example. Furthermore, locally stored information is often not considered in data backup concepts. If this is the case and an end device is lost or stops working, its locally stored data will no longer be available.