We recently had some entries submitted to the Portal that have been changing the user info of any logged in user who views them. This is very bad and we will have this problem fixed soon. Until we announce things are safe we recommend all users log out of their accounts before viewing new portal entries. After you watch it and close the window you can log in and then place your vote.
If your account was over taken it was probably renamed to "idiot" followed by some numbers. However, someone may have logged into your account since it was changed to info they knew and changed the name. If your account has vanished you can search NG for your reviews, portal submissions, bbs post. If you find something you posted, submitted, etc, view the profile and copy the user ID, username, etc, and email me as much info as possible! Include your previous username. The more info you can give me the better. Email: wade@newgrounds.com
We apologize for this security breech and we are taking steps to make sure this never happens again. In the mean time we have extensive logging in place so we can track down the offenders and bring them to justice if they continue submitting these malicious entries.