We'll show you how the lessons learned in the 1980s movie "The Karate Kid" can be applied to securing your systems.

Internet intruders have many ingenious ways of escalating privileges and hiding their presence once they get inside your system. The best protection is to keep them out in the cold.

User-Mode Linux feels like Linux because it is Linux. You’ll find a hundred uses for this fast and sensible virtual Linux system

When an attacker succeeds in infecting a victim’s system, the attacker inherits the victim’s privileges. App Armor beats the attack by reducing the potential victim’s privileges to a minimum.