 FreeBSD provides several security @-@ related features including access control lists ( ACLs ) , security event auditing , extended file system attributes , mandatory access controls ( MAC ) and fine @-@ grained capabilities . These security enhancements were developed by the TrustedBSD project . The project was founded by Robert Watson with the goal of implementing concepts from the Common Criteria for Information Technology Security Evaluation and the Orange Book . This project is ongoing and many of its extensions have been integrated into FreeBSD . The project is supported by a variety of organizations , including the DARPA , NSA , Network Associates Laboratories , Safeport Network Services , the University of Pennsylvania , Yahoo ! , McAfee Research , SPARTA , Apple Computer , nCircle Network Security , Google , the University of Cambridge Computer Laboratory , and others . 
