CCCS meaning in Computing ?

The Communications Security Establishment (CSE; French: Centre de la sécurité des télécommunications, CST), formerly called the Communications Security Establishment Canada (CSEC), is the Government of Canada's national cryptologic agency. It is responsible for foreign signals intelligence (SIGINT) and communications security (COMSEC), protecting federal government electronic information and communication networks, and is the technical authority for cyber security and information assurance.

Administered under the Department of National Defence (DND), the CSE is accountable to the Minister of National Defence through its deputy head, the Chief of CSE. The National Defence Minister is in turn accountable to the Cabinet and Parliament. The Chief of the CSE is currently Shelly Bruce, who assumed the office on 27 June 2018.

The Agency has recently built a new headquarters and campus encompassing 340,000 m2 (84 acres). The new headquarters totals a little over 110,000 m2 (1,200,000 sq ft) and is adjacent to CSIS.