This $200 Brute Force Bot Will Bust Your Phone's Pin in Hours
Source: http://gizmodo.com/this-200-brute-force-bot-will-bust-your-phones-pin-i-894436635
Your Android phone is not safe. This 3D-printed robot systematically tries all of the possible lock screen PINs for your phone until it gets in. With your standard four-digit number, your phone is compromised in under a day. If only you'd had an iPhone!