Received an email today to say that my Origin password had been changed. I didn't request the change so I logged in and changed it again, then I discovered my secret question was now in Russian.
After attempting to contact EA on their phone support line and holding for over 40 mins with no response (on an 0870 number) I thought it was time to see if anyone else had experienced this issue.
It didn't take me long to discover that many people have experienced it. It started last year and originally the russian hackers were changing the email and password making it impossible to reclaim the account as I have (partially anyway!).
In around December EA seem to have taken the clever decision of deliberately breaking the email change facility. Even though they claim there has been no breach of their systems.
So on their forums you now have two stickied threads, one where the people who have been hacked complain and one where the hackers complain about not being able to change the email anymore. Both with little or no response from EA.
I found it quite amusing in the end.
http://answers.ea.com/t5/Origin/bd-p/O-2