National security
National security
Keeping Canadians safe through counter-terrorism, security screening and protecting critical infrastructure.
Services and information
Our Security, Our Rights
Learn about Canada’s National Security Act, 2017.
Counter-terrorism
Canada’s efforts to counter global and domestic terrorist threats, and promote national peace and security.
Critical infrastructure
How Canada strengthens its essential services through programs and partnerships.
Espionage and Foreign Interference
Learn more about foreign interference and espionage threats to Canada.
Counter proliferation
How Canada and its partners work to counter the increase of chemical, biological, radiological and nuclear weapons.
Security screening
Security screening programs for individuals and businesses.
Cyber security
Potential risks of your online activities and how to stay safe when you are connected.
Canada’s national terrorism threat levels
Learn about the terrorism threat levels in Canada and how they help keep Canadians safe.
National Security Transparency Commitment
The Government’s commitment to ensure democratic values are reflected in Government activities to protect Canada.
Research Security
Protecting knowledge and research in Canada
What we are doing
Consultations
- Consulting with Canadians on Countering Foreign Interference
- Consultation - Economic-based threats to national security
- Share your thoughts: Strengthening Canada’s Counter-Proliferation Framework
- Consultation on Countering Radicalization to Violence
- Consultation on National Security
- Cross-Cultural Roundtable on Security
Features
Canadian Travel Number (CTN)
![](/https/www.canada.ca/content/dam/themes/policing/defense/nationalsecurity/cndn-trvl-nmbr-wb-ftr-bil.jpg)
A CTN prevents delays at the airport for travellers who have the same, or similar, name as someone on the Secure Air Travel Act (SATA) list.
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