The Communications Security Establishment is Canada's national cryptologic intelligence and security agency. It is responsible for foreign signals intelligence, conducting cyber operations, cyber secu
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Edward Drake Building, CSE headquarters
1625 Vanier Parkway, Cyber Centre
Parliament Ottawa
Signals intelligence
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Signals intelligence is the act and field of intelligence-gathering by interception of signals, whether communications between people or from electronic signals not directly used in communication. As
Communications Security Establishment
…Centre de la sécurité des télécommunications, CST) is Canada's national cryptologic intelligence and security agency. It is responsible for foreign signals intelligence, conducting cyber operations, cyber security and information assurance, and providing technical and operational assistance to the military, federal law…
RAF Menwith Hill, a large site in the United Kingdom, part of ECHELON and the UKUSA Agreement in 2005
A German message intercepted by the British during World War II, signaling Germany's unconditional surrender
Zimmermann Telegram, as decoded by Room 40 in 1917
A Mark 2 Colossus computer. The ten Colossi were the world's first programmable electronic computers, and were built to break the German codes.