Apple’s iOS 6.1.3 beta 2 just hit developers. The update fixes the gaping lock screen bug that allows access even with out a passcode. No word on whether it patches up the recent Evasi0n jailbreak, so you won’t get the fix yet. The worst part is the lag time. There’s about 4-5 seconds between the time I say something to the time they hear it. It makes smooth conversations impossible. The person on the other end sounds garbled.”]
Source: https://gizmodo.com/ios-6-1-3-beta-fixes-iphone-lock-screen-security-hole-5986001