The Lost and Found locker code is 772. It's in the note on the computer in the same building. Inside is the South Brae House Key.
Where it is
It's in the back office of the CEG Employee Lockers building on the Clara Woods Estate ground level (Part 4, Chapter 10: Missing Parts).
How to solve it
Read the computer
Interact with the computer and read both notes. You get Lost and Found and the CEG Employee Locker List.
Enter 772 on the LOST AND FOUND locker
It's in the back office.
Take the South Brae House Key
It opens 5 South Brae, where the floppy disk puzzle is.
While you're in this building, pick up Barcode (CEG Lockers) – Locker 75 from the counter by the scanner. It's the first of the barcode lockers.
Related puzzles
- Previous: Blood type wheel
- Next: Barcode lockers
- Floppy disk and South Brae safe: the South Brae House Key opens that house