The new lock screen bug was first documented by YouTube user videosdebarraquito, who posted a video demoing the procedure. The basic gist, seen in the video below, is to eject the iPhone’s SIM card while using the built-in voice controls to make a phone call.
Right now, the video is not showing up because I have to guess too many people are loading it, but it should show up in a bit. But as I always advise, if you do not REALLY need this update, do not bother with it. There is a video posted on thenextweb, so I grabbed that.
Update; the iOS 6.1.3 security flaw can be avoided easily. You should disable the “Voice Dial” option if you want to be safe. This is not confirmed.