My gMail account was hacked last night at 3AM by an IP from Germany.
Tips for you to do now!
1. Use email forwarder like akapost[dot]com for forums, online forms, etc.
2. For forums, Under General Settings or Edit Options: Uncheck the "Allow vCard Download" Because if you want to keep your email address private, do not allow vCard downloads!
3. Use a different password for different forums, use an excel to manage.
And if all the above fails and your gmail account still got hacked into, I hate to do this and hate to say this but you have to change your gmail password !
I've done all of the above.