Definition of "security system" []

• (computing) a system that enforces boundaries between computer networks (noun)
• An electrical device that sets off an alarm when someone tries to break in (noun)

WordNet. Princeton University. 2010.

• "Tyler fired up the computers and called Aiden MacKenna, who walked him through opening a port in the security system to allow remote access to the files."
• "Biosecurity Systems, Inc. A contract negotiation with Genneco for the purchase and installation of Genneco's new security system in Teterboro, New Jersey."
• "“Pehanron maintains a very dependable security system to safeguard its students.”"