Additional information has been revealed about Micro Systemation’s XRY application, and it turns out the tool isn’t as effective as previously thought. In fact, XRY is reportedly useless against newer iOS devices such as the iPhone 4S, the iPad 2 and the new iPad.
According to Will Strafach, who is better known by his @chronic handle on Twitter and in the jailbreaking community, the XRY tool defeats older iPhone models by using the publicly available “limera1n” exploit. Micro Systemation’s application simply loads a custom ramdisk, Strafach said, which apparently isn’t all that impressive “because anyone could put [it] together [on] their own using open source tools.”
In addition, the XRY tool was only able to find the iPhone’s passcode so quickly because it was set to 0000. The time needed to crack the code would’ve increased considerably with a more complex passcode. Strafach said the best way to “thwart” the XRY tool is to purchase the iPhone 4S, iPad 2 or the new iPad, since the limera1n exploit was fixed in A5 and A5x devices.