Recently my Gmail was hacked - I was suddenly signed out of Gtalk and my password no longer worked.
I was able to reset my password by following my secret question/answer. When I logged in again, I checked the IP security monitor and nothing but my IP has connected recently. I'm 99% positive I know the identity/e-mail of the person who hacked my account - a friend of someone I was talking to who became upset at me for talking to their friend too much.
I have never talked to this person or GChat.
What security vulnerabilities does Google, or Gtalk have that would give access to change my password? And can I report this to Google - I couldn't find a form on their website.
Please note I am not interested in "hacking back" or anything like that.