iOS 6.1 has been pretty much a nightmare for Apple and its users. It has had a lot of connections issues, syncing issues, battery issues and so on and so forth. And now there's a pretty big security issue that has just surfaced.
Users can now bypass a Lockscreen code by simply using a rather straightforward sequence of buttons. As you can see in the video above the whole process is done in a few seconds and it gives users access to a lot of areas of the phone including: the Phone app, Contacts, voicemail and even pictures.
All you have to do is pretend to turn the phone off, cancel and emergency call then press the on/off button a few times. This lets you bypass the security code and use the full Phone app. From there you have access to the adress book, and the pictures app by trying to change a contacts picture.
Of course this isn't the first time such a bug has been discovered. A very similar one popped up in iOS 4.1 and was fixed with a later update. Apple has yet to comment on this new bug but it is very likely they will be releasing a fix quite soon.