Bernd Marienfeldt and Jim Herbeck discovered the vulnerability, that can access your iPhone data, even when your phone is in a locked and un-jailbroken state. PIN codes to protect users from accessing your phone won't stop the vulnerability. Vulnerability can even work on an iPhone 3GS running firmware 3.1.3. This vulnerability can't be spread like iPhone iRickRoll'd worm, which changed users backgrounds on their jailbroken iPhones, running SSH and who haven't changed their default password. This new vulnerability appears ony when the phone is tethered to a computer running Ubuntu Lucid Lynx, so any person wanting your data will need to get a hold of your iPhone first.