Twenty-five years ago, the very first computer virus emerged. Today, computer security has changed dramatically—more than we could have possibly imagined back then. It has become far more complex and time consuming by the day for enterprises to stay safe. Viruses have been joined by a constant stream of worms, Trojans, spyware bots, hackers, vulnerability exploits, identity thieves, and other attacks that threaten entire networks, not to mention endpoints, including desktops, laptops, and servers. And, as networks expand to embrace the growing population of remote and mobile users, the potential for gaps in enterprise security becomes even greater.