I am not surprised to see one more exchange got hacked or possibly going to exitscam on their customers, and same thing could happen again to Binance and all other exchanges.
It needs to be repeated all the time, exchanges are meant only for trading and not for holding coins, and not your keys means not your coins.
Does ledger not have a solid reputation and perhaps security before they get hacked?
How about those exchanges like Coinbase, Binance, and all those big exchanges got hacked even hackers shared KYC data. Didn't they have a solid reputation?
Ledger is probably one of the worst example how you can ruin your reputation with repeated leaks and amateur owners who don't care about customer privacy, and I remember hackers also selling customers KYC from Binance.
Anything can be hacked but I think that so far only Kraken exchange has never been hacked (so far) and others may need to learn something from them.
Not sure why they chose to expose their new hot & cold wallets on Twitter...
Wallets for most exchanges are publicly known anyway and I think that only Coinbase hides them, but you can connect the dots and find their wallets also.