Researchers have come up with a vulnerability in iOS that can be exploited to crash iPhones or iPads within WiFi hotspot range (even if they are not trying to connect to that device). The "No iOS Zone" attack is something that certain antisocial types may enjoy: "See that guy over there by the window with the iPhone? Watch this. Watch! *chuckles*"
According to the researchers, the attack can render vulnerable iOS devices within range so unstable that they can be forced into a constant cycle of crashes.Tripwire
Although many may view such an attack as a practical joke, the truth is that such a “denial of service” attack could have a serious impact on organisations reliant upon their iOS devices.