A hacker has made good on Apple's warnings about security issues on jailbroken iPhones: Owners of infected handsets are greeted by a new wallpaper featuring the image of 80s pop star Rick Astley and the message, "ikee is never gonna give you up." iPhone owners, you've just been Rickrolled.

The worm reportedly doesn't do anything malicious--well, nothing more malicious than resurrecting an old 4chan prank. Of course, this may well just be a proof of concept hack from its programmer; the door to more malicious attacks, it seems, is now wide open.