security clearance
21clearance — noun 1 (C, U) the amount of space around one object that is needed to avoid it touching another object: The clearance between the bridge and the top of the bus was only ten centimetres. 2 (U) a process in which official permission is given for a… …
22clearance — noun Date: 1540 1. an act or process of clearing: as a. the removal of buildings from an area (as a city slum) b. the act of clearing a ship at the customhouse; also the papers showing that a ship has cleared c. the offsetting of checks and other …
23Security of Information Act — In Canada, the Security of Information Act is part of the Canadian Anti Terrorism Act (Bill C 36) [ [http://www2.parl.gc.ca/HousePublications/Publication.aspx?pub=bill doc=C 36 parl=37 ses=1 language=E Bill C 36] ] which received Royal Assent on… …
24clearance — 1560s, action of clearing, from CLEAR (Cf. clear) + ANCE (Cf. ance). Meaning a clear space is from 1788. Meaning approval, permission (esp. to land or take off an aircraft) is from 1944, Amer.Eng.; national security sense recorded from 1948.… …
25Security modes — Generally, Security modes refer to information systems security modes of operations used in mandatory access control (MAC) systems. Often, these systems contain information at various levels of security classification. The mode of operation is… …
26Oppenheimer security hearing — The Oppenheimer security hearing was a 1954 inquiry by the United States Atomic Energy Commission into the background, actions and associations of J. Robert Oppenheimer, the American scientist who had headed the Manhattan Project that developed… …
27Norwegian Defence Security Department — Insignia of NORDSD Active from 1940 Country Norway …
28Intelligence cycle security — This article is part of a series under the intelligence cycle management, and deals with protection of the intelligence cycle. For a hierarchical list of articles, see the intelligence cycle management hierarchy. National intelligence programs,… …
29Compartmentalization (information security) — In matters concerning information security, whether public or private sector, compartmentalization is the limiting of access to information to persons or other entities who have a need to know it in order to perform certain tasks. The concept… …
30Diplomatic Security Service — Abbreviation DSS Seal of the Diplomatic Security Service …
