This feature provides a way to unlock a KeySafe without using the Internet. The KeyHolder simply tells the wearer one of the numbers, the wearer keys the number in to the safe's keypad (followed by the "A" key), and the safe will open immediately.

Each number can be used only once. When a number is used, the safe will invalidate it and generate a new one. The new one will be sent to the web site the next time the KeySafe does a checkin operation.

Any numbers typed into the safe's keypad are always recorded, so a KeyHolder can detect if a wearer is doing any unauthorized guessing.