Apple has released iOS 6.1.3 today to fix a bug that allows users to bypass an iPhone’s passcode lock and access contacts and make phone calls. The update also brings improvements to Apple’s Maps data in Japan.
The passcode bypass bug was discovered by JailBreakNation last month. The method to bypass a passcode lock in iOS 6.1 requires several steps in a specific sequence involving the emergency call button available on the iPhone’s lock screen and the device’s sleep/wake button. JailBreakNation stated that creating contacts, viewing photos saved in the Photos app, and sending emails and texts using the contact sharing feature are all possible through the exploitation of this bug.
If you’re concerned about others getting access to your photos and contact information or using your iPhone to make calls despite the fact that you have a passcode lock set, you should download this update. However, if you jailbreak your iPhone, note that this update closes down some of the exploits used in the latest jailbreak method, evasi0n, so once you update, you’ll lose your jailbreak and there’s no way to get it back for most devices according to one of the hackers who created evasi0n.
iOS 6.1.3 applies to the iPhone 3GS, iPhone 4, iPhone 4S, iPhone 5, the iPad 2 and later, and the fourth-generation and later iPod touches. It’s a free download that can be obtained through iTunes on your computer or as an over-the-air update on your compatible iOS device in the Software Update area of the General section in the Settings app.