Truth time. Even though you know better, you still use your pet’s name for every password. (It’s only because we like you that we haven’t emptied your bank account and upgraded your cable service just to mess with you.) Those days may soon be gone, as passwords and PINs may be replaced with “pass thoughts,” a form of computer authentication gained simply by thinking. A study recently conducted at UC Berkeley by Professor John Chuang reveals this could be the brain wave of the future.