GAO-09-661T:
Published: May 5, 2009
Publicly Released: May 5, 2009
Cyber threats to federal information systems and cyber-based critical infrastructures are evolving and growing. These threats can be unintentional and intentional, targeted or nontargeted, and can come from a variety of sources, such as foreign nations engaged in espionage and information warfare, criminals, hackers, virus writers, and disgruntled employees and contractors working within an organ