Why do you think binance will go bankrupt just because the attack of hackers ?
Binance must be have some advanced security system on their exchange, otherwise they would facing many problems before they reached on the top exchange list.
What ? Changelly is good you say ? I think i have read scam accusation about Changelly exchange somewhere.
(here : https://bitcointalksearch.org/topic/changelly-illegal-exchanger-from-russia-with-fake-team-5034589)