It's not new that Bitfinex has been hacked in the past.
Twice actually.
But being one of the most versatile exchanges for pro traders like myself,it still has a very high trading volume and is still standing.
I personally use Bitfinex for scalp trades, while I use Binance to trade my hodlings whenever the price moves big.
Bitfinex has many awesome tools for pro traders,along with indicators of every flavor.
And millions of people still trust it.
So yes,it can be trusted.