Did you have your wallet encrypted?
Yes, i have. But i had so few bitcoin on it, he didn't even took them.
You had 2FA enabled on your exchange accounts right?*
* (Of course not the question was rhetorical for any noob reading every single one of these stories has the same thing in common - no 2FA).
No, but i recently bought a yubikey, i was waiting for it... Too late !
MtGox Support told me that the will collaborate with my local police, in order to retrieve the hacker. I don't have many hope for that, but... Who knows ?
Seriously, everyone should use 2FA and an encrypted wallet.