Apple (AAPL) released iOS version 6.1.3 on Tuesday to update its Maps application and fix a security vulnerability. In early February, an iOS bug was discovered that allowed unauthorized users to bypass the lock screen on a passcode-protected iPhone, iPad or iPod touch. While this particular security concern was fixed in Apple’s latest iOS update, a second vulnerability has now been discovered: the passcode security on an iPhone can be bypassed by using the voice control feature to dial a number. If the SIM card is ejected while the phone is dialing, the device will end the call and give unauthorized access to the address book and photos stored on the device. The latest vulnerability was tested on an iPhone 4 running iOS 6.1.3 and a video demonstration follows below.