Players navigating the CEG HQ in Silent Hill Townfall may find themselves puzzled by the Security keypad code. While numerous locked black boxes and scattered documents within the building can create a sense of misdirection, the key to solving this particular puzzle is found in the Maintenance room.
A drawing on the whiteboard in the Maintenance room provides the crucial clue. This diagram indicates that the Security keypad code begins with the number four. Following the directional arrows shown on the whiteboard while inputting the code will reveal the complete sequence.
By deciphering the whiteboard's visual instructions, players will discover the Security keypad code is 4891. Entering this code grants access to a save phone, the second part of the Case Codes document (essential for deciphering Richard's case code), and two computers. The next objective typically involves opening Richard's case and then returning to Security to print an Access Card.