Yeah 888 or 8888. I'm sure the default code can be changed though. Maybe some rogue tech ops dude changed it years ago before he left the facility, knowing future controllers/tech ops wouldn't be able to lock it to wipe down. Better wipe gently or just do it on the mid. Otherwise you'll have to visit the ETVS chans to figure out how to jailbreak/root it, customize whatever you want, and do the cleaning you need.