vBulletin Servers Hacked, Admins Force Password Reset for All Users

Last Thursday the vBulleting.org and vBulleting.com domains went offline for maintenance and remained so until Friday afternoon. As soon as the forums came back online, all users were forced to reset their passwords in order to access their accounts.

The combination of this non-scheduled maintenance and the forced password reset is a typical sign of a data breach. The hacking incident was confirmed hours later on Friday by Paul M., Lead Developer for vBulletin.org & vBulletin.com.