SMobile System had brought to attention a new problem that concerns the safety of all smartphones including the iPhone.According to their statements, any iPhone, whether in its original state or jailbroken, can be attacked by bypassing the keys to the safety of WiFi hotspot. Through this type of attack, a hacker can steal your email and password without you even knowing that something is going on.
Since your emails contain sensitive data, this problem is quite serious. At the moment, these tests were performed on the iPhone 3Gs updated to the latest firmware, Nokia N95, the HTC Tilt and the G1 and all of this tests returned positive.
All we can tell you for now is to think twice before using a public WiFi hotspot….