I am curious if anyone has a guess on statistics relating to the use of intrusion detection systems in UNIX systems across the United States/World. What percentage use no protection except basic UNIX accounting? What percentage use basic, commercial accounting/security packages? What percentage use full blown intrusion detection systems? Current headlines and research papers seem to indicate most intruders are still being caught by accident (ie system crashes, slow machines, new accounts, etc.) -------------------------------------- 2LT David R. Landry Graduate Student, AI/Computer Security Air Force Institute of Technology dlandry@afit.af.mil