The iPhone SMS Hack

According to Forbes, the SMS exploit being demonstrated at Black Hat today involves sending short, mostly invisible SMS bursts which would allow a potential hacker to entirely take over the phone. The only warning you would have to alert you to the hack would be a text messaging that contained a single square character. If you received something like that, your only recourse would be to turn the phone off immediately.
The researchers said they alerted Apple to this vulnerability over a month ago, but no patch has been released. Apple isn't returning calls requesting a comment, either