Sony Xperia Z has its own lockscreen security issue.
No more smirking about the iPhone 5 and SGS2/3/Note etc , oh proud Xperia Z owners.
Sony's flagship of the month has its very own security hole:
one would simply have to go to the Emergency call screen when the phone is locked, and enter a code to access the service menu (apparently, the code is *#*#7378423#*#*).
Next, one would have to go to Service tests > NFC > NFC Diag Test and then tap the home button. After that, one would be able to browse through the device without issues...
Full story and demo-video here