What do you make of this?

[FormerIphoney]

I had my phone turned off while it was charging, unplugged it and powered it up.
The immediate screen I get is the" Samsung" logo and underneath it an unlocked lock and the word "custom" under the lock.

Never seen that before.... Thoughts?

SGS3 production

 

[PJnc284]

Seems that there's a glitch as even people with stock devices are getting it. Saw one where it came out of the box like that. I have rooted and installed roms on mine but never got it until I recently used the EZ-Recovery app to flash an updated recovery.