UPDATE 05/14/15 4:00am: All the servers that needed reboots were successfully rebooted and all services came back up right away. There was approximately 90 seconds of down time for affected sites. This issue can be considered closed.
Yesterday we were notified of a potential security vulnerability that affects IndieMade servers. The servers have been patched, but will require reboots. As a result IndieMade sites will have a brief downtime, starting tomorrow morning aroud 3:30am. We'll update this ticket when there are more details.