Is a Mobile Virus Even Possible?

A virus on a mobile phone is possible, although for the iPhone, it is rare. While other mobile operating systems allow anyone to develop applications for their phones, if you develop something for the iPhone, it must go through Apple's stringent testing process to ensure it is safe and that it meets their guidelines. You can, through a process called jailbreaking, change the operating system and download third party apps, which leaves you open to malicious attacks.