There's no such thing as a perfectly secure operating system, but security experts agree — somewhat grudgingly in some cases — that iOS, Apple's mobile operating system, is the most secure commercial OS today, mobile or desktop. It didn't start that way of course, and Robert Lemos explains what Apple did to go from insecure to most secure.
http://apple.slashdot.org/story/11/0...To-Most-Secure
