From a company that keeps your pictures secure comes secure credit card wallet, you couldn't make it up :rollseyes:
Mainly they exploited the fact that the FindMyIphone website did not throttle the number of login attempts. So you can do it as many times as possible. Apple deflected this by "denying" that any usernames or passwords were leaked, but in reality it is their fault that the accounts were compromised.
There was early speculation that the flaw was at fault, but no confirmation from anyone.
Go ahead though - blame that bug, because Apple.