https://nulledbb.com/thread-Leak-Billy-s...or-checked
Thread is closed, did some digging, doesn't really look like there is backdoors. Check for yourselves though.
Update; This does not include keypads apparently, looks to just be the keycard.
Garry's Mod Leaks
Billy keypad (NEW) But only lua and shared files.
Submitted by cromm26, 18-03-2022, 06:46 PM, Thread ID: 238039
Thread Closed