National security

Discover how we protect the security of Canadians through counter-terrorism, security screenings and the protection of Canada’s critical infrastructure.



Information on Canada’s efforts to counter global and domestic terrorist threats, and how Canada is promoting national peace and security.

Critical infrastructure

Learn about how Canada strengthens the resiliency of processes, systems, facilities, technologies, networks, assets and services essential to the health, safety, security or economic well-being of Canadians and the effective functioning of government.

Security threat

Read about the threat of terrorism, espionage, foreign interference, and weapons of mass destruction.

Counter proliferation

Learn how the Government of Canada, through its collaboration with international partners, works to counter the proliferation of chemical, biological, radiological and nuclear weapons.

Security screening

Access information about government security screening programs for individuals and businesses.

Cyber security

Learn about the potential risks of your online activities and how you can stay safe when you are connected.

What we are doing

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