Again, nothing. Given the accounts that were hacked, they could easily have moved markets and had pre-placed short bets that would have netted them potentially hundreds of millions.
If they had capital to begin with. If this is some individual hacker without much for means, swiping $100k of BTC in a potentially narrow window when a security vulnerability is in place is greater than $0 while trying to line up capital and shorts.
If you do it in "real" markets, you get the attention of the SEC or similar agencies in other countries. Crypto is completely unregulated in this regard.
No, but if someone managed to hack a bunch of Teslas and cause chaos, driving their stock down, you can bet law enforcement would be looking at shorting activity.
