From Habr.
What happens to deleted messages (or when a profile is deleted)?
Automatically packed and sent to the FSB for storage.
Are they packing? In the sense? You are confusing, my friend, everything is printed, sewn in the collection and sewn into the personal affairs of the citizen.
They packed. In the cellophane.
Is there any hope that the collections will be sent to the FSB by the Russian Post?