The thing is, there is little or no evidence in many of these cases, that it was hacked, and not a inside job.
People should just learn not to save HUGE amounts of coins in ANY exchange. Just leave some small amounts of coins for trading and keep the rest in cold storage.
A exchange is not a place to store coins.. period.!
Until someone find a way to decentralize these exchanges, I will never use them for big quantities of coins. If you want to trade in big volumes, use the more reputable exchanges or use more than one, to split your risk.
It seems that that exchange dealing with fiat money. At previous hack/s, they paid to their customers so I dont think its an inside job(but still possible).
I strongly want regulatory environment for exchanges. It will give more confidency to the customers. Cold storages, multi signatures should be necessary for operating BTC exchanges.