It appears the account hasn't posted since then, but there is a possibility that it tries to pm people to scam them. You can try account recovery using secret question if you set one up, this will lock the account.

There has been warnings on email security, but it's been a while I saw them. You made the mistake of using a promotional email address. The email providers likely transferred all previous data when the account was retrieved, and the new owner saw some bitcointalk related mails leading them here.

Do you have any other accounts linked to that address?