Massachusetts Department of Revenue has been practicing data surveillance longer than most. It is against department policy for anyone, including employees, to access taxpayer data without a legitimate business reason. Biggest threat to data security comes from insiders who have free and easy access to the data. Technology and tools now exist to scan and store just about anything: e-mails, instant messaging transcripts, Web surfing habits, keywords entered and even each individual keystroke in files. Lock down or watch what employees are doing with your critical corporate data.”]