Engler and Vines are also working on another Star Wars-themed code-cracking bot. This one's called the Capacitative Cartesian Coordinate Brute-force Overlay. Better known as C3B0, this droid utilizes electrodes on a phone's touchscreen to simulate finger tapping.
But don't worry, you won't have to start hiding your phone from an army of code-cracking robots, the developers created R2B2 simply to see if it could be done. But Engler told Forbes that the bot does raise awareness about PIN code insecurity.
"When you see a robot working like this, you think, ‘maybe I should have a longer PIN,'" said Engler. "If I'm a CEO, a four digit PIN is a problem, because it's worth 20 hours to break in and get my confidential emails."
In fact, many phones do have an option for a six-digit PIN. By just adding those two extra digits, it would take R2B2 up to 80 days longer to crack the code, compared to a four-digit number.
BLOG: Artificial Sun Built To Brighten Dark Winter Days
Engler and Vines plan to release the free software and blueprints for the 3D-printable parts next month at DEF CON, a hacker conference in Las Vegas. They also plan to have C3B0 ready in time, so if you're in Sin City the first weekend in August, stop by the Rio Hotel and Casino and see if they can hack your phone while you win your fortune at the slots.