An SMF.org admin account was accessed and the SMF website and database was compromised! This means they have gained access to any info on SMF...including any personal info that you may have entered via PM!
Please change all passwords to your sites, bank accounts, Paypal, etc... You can read more about it here:
http://www.simplemachines.org/community/index.php?topic=508232.0 (http://www.simplemachines.org/community/index.php?topic=508232.0)