Services and information
The Communications Security Establishment is Canada’s agency responsible for foreign signals intelligence, cyber operations, and cyber security.
We gather foreign signals intelligence to defend Canada’s national security. We keep the Government of Canada’s information secure. We work with industry and academia to protect Canadians from cyber threats.
Learn about CSE’s cyber security activities
Learn about CSE’s foreign signals intelligence activities
Learn about CSE’s foreign cyber operations
Assistance to federal partners
Learn about CSE’s role in assisting federal defence partners
Research at CSE
Learn about research taking place at CSE
Join our team and help keep Canadians safe
Read how we are held accountable to Canadians
Culture and community
Learn how we support our employees and our community