Yes this it 100℅ true in all aspects of digital world and most real world items.
I've had a steam account worth well over 10k and i was a small pawn In trading items with people and I was sold stolen items and they then banned my account.. so from this I have learned we Own nothing that is on the internet hits why it is best to keep little coins in banks or only exchanges and online wallets
and not let the private key slip into other peoples hands. otherwise they have authority to sign a transaction