Apple's iPhone appears to have fallen victim to a virus, albeit under very limited circumstances.
Security researchers at Sophos say the "Ikee" virus "changes the phone's background picture to 1980s singer Rick Astley, and then goes looking for other iPhones on the network to infect."
You can see the effects of the hack at right.
The company says the virus spreads through Secure Shell (SSH) which it says "is pre-installed, but not enabled, on the iPhone. However, many users who have jailbroken their phones may have enabled SSH as a convenient way of logging into and accessing their phones from other computers. Unfortunately, even though the iPhone ships with SSH turned off, Apple's pre-configuration of SSH sets the same root password on every single iPhone."
"If you have a jailbroken iPhone, change your SSH passwords now," urges Paul Ducklin, Sophos's Head of Technology, Asia Pacific. "If you don't have a jailbroken iPhone, you probably also ought to change those passwords, since it makes no sense to have poor passwords pre-configured for any operating system service, whether it runs by default or not."
An interview with the creator of the virus reveals that the virus' origin is Australia. The author also reveals how the virus works, saying "the code itself is set to firstly scan the 3G IP range the phone is on, then Optus/Vodafone/Telstra's IP Ranges" in order to find susceptible iPhones to infect.