binary9
From Tardis Wiki, the free Doctor Who reference
"binary9" was a password in Pete's World.
It was used to protect the encryption of the Lumic Family Database that stored the code 6879760 which could deactivate the emotional inhibitors of the Cybermen (TV: The Age of Steel) and was the password to gain access to control of a Cybus Airship in Paris. (GAME: Cybus Spy, Airships)