Reporting National Security Information

CSIS’s role is to investigate activities suspected of constituting threats to the security of Canada and to report on these to the Government of Canada. Key threats include:

  • Terrorism
  • The proliferation of weapons of mass destruction
  • Espionage
  • Foreign interference
  • Cyber-tampering affecting critical infrastructure

If you believe you have information related to national security that CSIS should know about, please report it.

To report non-immediate threat information related to national security, please contact CSIS by phone at 613-993-9620 24/7 or complete the online Reporting National Security Information form.

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