integrated collection of security measures designed to prevent unauthorized electronic access to a networked computer system
partition made of fireproof material to prevent the spread of a fire from one part of a building or ship to another or to isolate an engine compartment, as on a plane, automobile, etc.
a computer component that prevents unauthorized access to data [n FIREWALLS]
to install software that protects a network against unauthorized users [v -ED, -ING, -S]