Saw this on another board. If you have a newer Amazon acct it may be accessed by entering the wrong password. Might be a good idea to check yours and change it if needed.
http://www.huffingtonpost.com/2011/01/29/amazon-security-flaw-password-problem_n_815634.html
http://www.huffingtonpost.com/2011/01/29/amazon-security-flaw-password-problem_n_815634.html