Both FTX and FTX.us were hacked. My understanding is that these are two entirely separate companies. FTX.us was continuing to server its users, was not involved in the Binance deal, had not had liquidity problems, and so on. They were an entirely separate company with separate wallets, separate databases, a separate back end, etc.
And so what is the likelihood of a random attacker breaking in to two entirely separate exchanges at the exact same time? Almost zero. This is almost certainly an inside job, the way I see it. And with that, any shred of hope that FTX users had of recovering even a portion of their assets is gone.
Just a heads up: a lot of people might probably say that this is unlikely a "hack" and that some FTX personnel(regardless if it's SBF or not) is just running away with the funds(and I agree that this is highly more likely), but regardless don't open the FTX website and uninstall all FTX apps. JUST TO BE EXTRA SURE.
I don't know how FTX works (and I suppose it depends on the specifics of your bank/jurisdiction), but it is possible that FTX has permission to pull funds from users' linked bank accounts or cards to execute buy orders. Users need to make sure they revoke all access, if they haven't already when they went bankrupt.
don't trust exchanges with more than a few hundred bucks
Don't trust exchanges. FTFY.
If they are thinking they be safe with Binance then they are messing about.
Exactly this. FTX was the 2nd(?) biggest exchange. If they can simultaneously go bankrupt and also scam all their users, then any other exchange (Binance included) can do that too. Any coin not in your own wallet is not yours.