After the GSM encryption was cracked just a few short weeks ago, it seems that 3G encryption has also been cracked. To make matters worse, the attack only takes a few hours on your typical computer. With this method, you can crack 3G’s KASUMI system, which is based on a simplified type of Fiestel encryption called MISTY. MISTY uses multiple keys and a recursive, multi-round encryption process. The KASUMI algorithm was supposed to make it faster and more hardware friendly, without having to compromise on security, but since we’re writing this, it’s obvious that it’s not as secure as once thought. Do you suddenly feel less secure about your cell phone?