How do you pick the perfect password? Is it as simple as XKCD make out, or is there more to it? Dr Mike Pound follows on from his password cracking video. Password Cracking on a 4x Titan X Beast: EXTRA BITS: Indie Game Developer: Indie App Developer: This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: Computerphile is a sister project to Brady Haran's Numberphile. More at