The Sony Xperia Z has a security leak, with which you can easily bypass the LockScreen. Among other things the iPhone and the Galaxy S3 have shown in a very short time that the lock screen of smartphones is uncertain. Now, also a LockScreen bug when the Xperia Z was discovered, which can be very easy to exploit.
Z via pattern the Xperia is locked, it is sufficient to press the emergency button and the code * #* #7378423#*# * to enter. It opens the menu, where under "service tests |" NFC"must type only"NFC Diag Test"and then click the home button to unlock the Xperia Z. The LockScreen remains open until a reboot of the device.
In contrast to the other known LockScreen bugs here no special timing is necessary: in our test could we circumvent the lock screen of Xperia Z without any problems.
Solution: we can confirm the error only for the block pattern. Protect your Smartphone as per PIN entry, the bug can not take advantage of. Until Sony offers an update, should be avoided on the "pattern".
According to some user reports, allegedly all Sony smartphones using the Android version 4.1.2 are affected by the bug, about the Xperia V. We will try to verify the software error for other Sony cell phones.
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