Definitions for "Security service"
the government agency in the United Kingdom that is responsible for internal security and counterintelligence on British territory
Usually a country's internal counterintelligence service.
The government department responsible for catching and interrogating enemy spies and running the British spy system
service related to data security; examples: cf. privilege management; cf. access control; cf. electronic identifier for patients, professionals and entities; Authentication and e-signature certificates;  Encryption services; Consent management services.
A service, provided by a layer of communicating open systems, which ensures adequate security of the systems or of data transfers.
Network-wide database for registering user and server identities, and providing authentication, authorization, and encryption, when required.
The UK's domestic intelligence and security agency. [External website
A set of operation (s) designed to support some aspect of security in a distributed system. source: EU-P103 domain: usage: EU-P103
a method to provide some specific aspect of security