It's not a desirable club to be in, but you can add the Sony Xperia Z to the list of devices where the lock screen security can be easily bypassed. There's no doubt that Sony would love to have the market share of either Apple or Samsung, but emulating one of the worst security flaws probably isn't the way to do it. Hot on the heels of fresh Apple and Samsung lock screen bugs it's emerged that the Xperia Z has a critical lock screen bug of its own… and it's a doozy.
In case you missed it, that's a matter of heading to the emergency dialler, punching in *#*#7378423#*#* and then running the NFC diagnostic test, at which point you can hit the home button and you're in. I've tested this one with an Australian Xperia Z, and it's all too sadly genuine. It's not even the first bug for the Xperia Z, with many users reporting a bug that makes it difficult (but not impossible) to switch the phone back on. That bug is reportedly being fixed in an update, and hopefully this one will be as well. [YouTube via Slashgear]