Is it your account? The email seems to have been changed not the password. Maybe it was locked via email as a lock option is sent to the original as a security precaution.
You can follow the following to try get it unlocked:
https://bitcointalk.org/index.php?topic=497545.0Post it in here if you can provide it and it has more chance of being unlocked.
Here in the log you can see that my account password was changed! Yes that was me
https://bitcointalk.org/seclog.phpI'm sorry but I don't have any staked BTC address to sign. Is there any other way to recover it? Maybe I can send an email from the linked email to prove that I'm the real owner.