Unfortunately, there are limits to the stealthiness of deleting data, although deleting data is still much more stealthy than resetting the device to factory defaults. After deleting data in various places in the system (logs, cache, statistics, etc.) remains a lot of evidence that this data existed. It is almost impossible to erase all these traces, and an advanced adversary with full access to the device will be able to detect them. Fortunately, some of these traces are harmless - you can make up whatever you want about a deleted Android profile. However, some traces allow to find out that you have recently deleted data using this application, that will make the adversary much more interested in extracting the truth from you. I try to fight with such traces. The app includes some additional options that will allow you to hide its existence on the device and its role in erasing data from your device. However, the study of traces of deleted data is still far from complete.
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