Apple iPad 2 passcode flaw could expose sensitive corporate data

A major security flaw has been spotted on the iPad 2 allowing someone to bypass the passcode protection screen and access the last application that was in use.

The bug is exploitable if the 'Smart Cover lock' option is turned on, and is easily carried out.

First, someone needs to hold down the power button until the iPad 2 offers the 'turn off' option. Then, instead of powering the device down, they simply close the cover over the device and then open it again.

Clicking 'Cancel' at the bottom of the screen makes the iPad 2 display the last screen, which could be anything from a web page to contacts or confidential data in corporate applications.

The fault was discovered by 9to5 Mac and will be a huge concern for business users as it could leave confidential data at risk if the tablet is lost or stolen.

V3 tested the flaw and managed to gain access to an iPad 2 running iOS 5. However, subsequent attempts to unlock the tablet using this method led to a black screen.

A quick fix is available by turning off the 'SmartCover lock' feature, but Apple will no doubt work towards a more permanent fix now that the issue has come to light.

The incident is the second recent security issue relating to Apple products after it was revealed earlier this week that the Siri personal assistant feature could bypass the passcode lock on the iPhone 4S.

By holding down the home button, anyone can give Siri verbal commands to compose emails, texts, change calendar settings and even make phone calls.