the lesson here is we have to even more careful with our bitcoin than with fiat.
Yes, digital assets are highly vulnerable than physical assets. Practically safeguarding digital things are easy to secure and easy to hide at the same time they are quickly getting hacked. But having double or triple layer of protections will save us.
Similarly, I do see there are more ponzi and scam programs/attempts online than real life. I am not seeing any doubling programs being advertised on newspaper but I do see at least one ponzi in famous crypto online news site.
Yes you may be hacked by the scammers around the internet. Don't share your wallet.DAT file and make your encrypt with the two factor authentification to your wallet. Ponzi schemes is same like doubling coins, cloud mining and etc.. Hope you perfect in your view about it.