You can think about cracking Google glass but you cant hack it, It was told by Google inc., but after few days of release it has been hacked. By this  hack its users can understand its technology and also how Google glass is derived in full control of the Android operating system.
google-glass
google-glass
The much talked about Android and IOS Developer Jay Freeman on Friday updated it on Twitter after hacking it.  The ‘root’ or ‘ JailBraker’  restrictions which were imposed on Google technology glass can be removed. However, it is not ready for the consumer in the version restrictions. again also undeniable that Google hack on the glass Is likely much higher.
Google Glass Hacked
Google Glass Hacked
Not only that, there are many hackers, not only Freeman tried to hack Google glass. Liam McLaughlin, another developer of Google acquired root access system glass. Google staff member Tim Bray has confirmed the fact that glass can be used to hack Google now is to see that the company stop it. what concrete steps up.