Former iPhone jailbreak hacker Jonathan Zdziarski recently gave a presentation at the HOPE/X conference regarding iOS device security. He said that the platform is reasonably secure from attacks by malicious hackers, but noted there are several backdoors built-in for surveillance.
In the presentation, called 'Identifying Backdoors, Attack Points, and Surveillance Mechanisms in iOS Devices,' Zdziarski detailed a number of undocumented high-value forensic services running on iOS devices, and suspicious design omissions in the OS, that appear to be for snooping...