a prison with more restrictions designed to hold the most dangerous criminals of society; supermax.

(US) The concerted national effort, principally by government, to keep the United States safe and resilient to terrorism and other hazards.

plural of security camera

plural of security service

A set of practices shared by a community whose members may engage in illegal or sensitive activities, in order to minimize the risk of these activities being subverted or sabotaged.

plural of security culture

plural of security system

plural of security principal

A producer of printed documents or products which are physically protected against forgery, counterfeiting and alteration by security features

(software engineering, of software) designed from the ground up to be secure