I'm sorry you lost funds but there is a finer point separating the bitcoin network and the bitcoin protocol and an exchange losing their funds.
Yes, this is not a Bitcoin vulnerability. Getting access to your wallet is not the same as cracking it.
Don't understand why I'm being downvoted. Don't put your coins on an exchange, ever, unless you want to risk them being lost. This is cryptocurrency 101.
Cryptsy was a middleman, he specifically covered this case. Bitcoin never got hacked.