If you can detect, store and analyze every single keystroke made at every single terminal in an enterprise, a tremendous amount of information can be gathered, not only with a security view, but also from a productivity standpoint. With the ability to track keystrokes at nodal terminals, individual efficiency and work output can be measured, assessed and compared to other workers in similar positions. However, be very careful with implementing such mechanisms without the advice of human relations and legal counsel. The Department of Justice has legal views that need to be considered. In addition, states have their own interpretations that do not always favor a company's belief that it can control or monitor its own networks any way it sees fit.
Invasion of privacy is the counter-argument.
Your company needs to meet keystroke monitoring head-on if it's a real consideration. Collecting profiles and signatures of behavior and keystroke sequences creates a foundation for a detection mechanism. Winn Schwartau is a security maven, writer and speaker. His team provides extensive security consulting on three continents. In addition, he is a popular, inventive and exciting speaker a boon to any event.