DVD Jon - the hacker name of the Norwegian-born Jon Lech Johansen - has claimed he has managed to activate Apple's iPhone without giving any "money or personal information" to the phone maker's US network partner AT&T.

"There are people who want an iPhone to use it as an iPod and wi-fi device without having to enter into a two-year AT&T contract," wrote Johansen on his blog.

According to Oslo daily Dagbladet Johansen has posted the method on its website.

After activating the "brand new unactivated" iPhone it "does not have phone capability, but the iPod and WiFi work," he said.

Johansen is not as his first attempt to crack an Apple’s products. Last October he claimed he managed to crack the digital protection on Apple's iTunes.

As for iPhone, Johansen is not the only one who is trying to override the protection.

According to PC World USA, by Tuesday night, U.S. time, hackers succeeded also in cracking the iPhone's activation process.

"Activating the phone really just makes the device more 'usable' for those who want to use it as a Wi-Fi device, for instance," said one of the hackers in an interview with PC World.