An American man has claimed that he hacked the new iPhone 5, less than eight hours after it was released to the public. Grant Paul, who develops software for Apple's iOS operating system, posted photos on his Twitter page of a 'jailbroken' iPhone 5. Tech news site The Next Web reports that Paul's hack of the new phone is remarkably fast.

According to the Daily Mail, instructions for stable 'jailbreaks' are posted online, which allow normal users to free their phones of Apple's restrictions.

Paul tweeted a photo of an iPhone5 screenshot that included Cydia, the app used to download non- Apple -approved software on jailbroken iPhones.

The implication of the photo was that Paul had been able to download Cydia to his iPhone 5 only because he was successfully able to hack it, the report said.

He celebrated the remarkable achievement by tweeting, 'taller screens like Cydia too. :)'

According to the paper, the tech community has largely accepted the pictures as proof that the iPhone 5 has successfully been cracked.