[0x426577617265]

Yes, Except the key isn’t destroyed it’s in the json file next to the main db file. Meaning user’s deleted messages could still be recovered.

Even if the user went as far as deleting the json file, it could still possibly be recovered due to the way the FS ‘deletes’ files.

[Operyl]

I think the other posters are saying it’s much easier to shred a small file than it is to shred a multiple GB database, although these days it doesn’t matter so much for a database that small. It’s super efficient for file systems though.

[pseudalopex]

Yes. And I'm talking generally. I don't know what Signal does.