We all know the threats posed by spyware to enterprise networks: user ID and password theft, financial loss, productivity drain, intellectual property theft. Security practitioners have two defenses at their disposal: the human and the technical. While the technology for combating spyware is improving, antivirus vendors have only recently started adding functionality to target it. That means the best defense is the human one — employees and end users. They can help in the battle against spyware through security awareness training and information security policies.