Cheap GPUs are rendering strong passwords useless. Think that your eight-character password consisting of lowercase characters, uppercase characters and a sprinkling of numbers is strong enough to protect you from a brute force attack? Think again! Jon Honeyball writing for PC Pro has a sobering piece on how the modern GPU can be leveraged as a powerful tool against passwords once considered safe from bruteforce attack. Take a cheap GPU (like the Radeon HD 5770) and the free GPU-powered password busting tool called 'ighashgpu' and you have yourself a lean, mean password busting machine. How lean and mean? Very: MIT Guide to Lockpicking.