hacker attack a few months ago is not a failure in my opinion,
an exchange is said to fail if it has been attacked by hackers but after that the exchange closes and cannot refund user funds,
but binance is responsible and returns the stolen funds,
and here the real success, because the binance trade is more concerned with user responsibility and comfort.
Thats the good thing with Binance where they do able to handle out the situation in spite of the attack and such loss of funds or into those exploit informations
where most exchangers do experience such scenario would most likely close its doors or decide to stop their service but eventually even if they do able to sort it and handle it out.
They should do their best to suppress or avoid it as minimal as they can because continuous issues in regards to security would gradually lose up users confidence and im pretty sure with that.For now they are still on the tip top shape in means of exchange market but if these issues do still continue then im sure lots of people or their users will find out some better place than Binance.