Communications Security Establishment Canada releases its 2025-2026 Annual Report
News release
Ottawa, Ontario – June 29, 2026
Today, the Communications Security Establishment Canada (CSE) released its 2025-2026 Annual Report, outlining the work of CSE and its Canadian Centre for Cyber Security (Cyber Centre) from April 1, 2025, to March 31, 2026.
In a year marked by an increasingly complex and evolving threat landscape, CSE leveraged all aspects of its mandate, and worked with domestic and international partners, to protect Canada and Canadians. Through foreign signals intelligence and cyber capabilities, CSE helped inform government decision-making, defend critical systems, and address threats to Canada’s security, sovereignty and economic prosperity.
Highlights of the 2025-2026 annual report include:
- CSE produced 3,976 foreign intelligence reports to inform the Government of Canada about foreign-based threats and global events
- The Cyber Centre responded to more than 3,200 cyber security incidents affecting federal institutions and critical infrastructure
- The Cyber Centre issued 25 alerts, 995 advisories and over 97,000 National Cyber Threat Notification System alerts to 1,363 subscribed organizations
- CSE took action against 10 of the most significant ransomware groups causing harm to Canada and its allies
- CSE conducted 1,772 supply chain risk assessments in 2025 to 2026 to strengthen cyber resilience across government
- In the last year, CSE received a total of 13 Ministerial Authorizations, including 4 related to foreign cyber operations
- CSE began advancing work enabled by historic defence investments, including modern secure digital infrastructure, stronger cyber defence capabilities, artificial intelligence, post-quantum cryptography and secure collaboration with trusted allies.
- CSE grew its workforce to 4,178 employees, an 8.1% increase from 2024-2025, while strengthening inclusion, accessibility, wellness and talent development.
Together, these activities demonstrate how CSE is using its integrated mandate to address threats to Canada and its interests, while strengthening the country’s digital security and resilience.
Quotes
“CSE plays a vital role in protecting Canada and Canadians, often in ways that are not visible to the public. This Annual Report underscores the importance of that work is to our security, sovereignty and economic well-being. Over the past year, CSE has provided valuable foreign intelligence to inform decision-making, strengthened the cyber security of critical systems, and worked closely with partners to respond to threats facing Canadians and our institutions. As Canada continues to invest in defence and security, CSE will remain an essential part of that effort—helping us better understand an increasingly complex threat environment, protect what matters most, and support the Canadian Armed Forces and our allies. I want to thank the dedicated professionals at CSE for their service, professionalism, and unwavering commitment to keeping Canadians safe.”
– The Honourable David J. McGuinty, Minister of National Defence
“As CSE marks 80 years of service to Canada, we continue to adapt to a security environment, with cyber threats growing in scale and complexity. Every day, our people work to better understand these threats and respond to them - whether through foreign intelligence, cyber defence, or action against malicious actors. Investments made in 2025 are strengthening our capabilities and equipping us with the modern tools to meet this moment. This report reflects the dedication of our people, the strength of our partnerships, and our shared commitment to serving as Canada’s digital frontline of defence.”
– Caroline Xavier, Chief of CSE
Quick facts
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In 2026, CSE marks 80 years of service to Canada.
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CSE is Canada’s national cryptologic agency, responsible for foreign signals intelligence, cyber security and information assurance, foreign cyber operations, and technical and operational assistance to federal partners.
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The Canadian Centre for Cyber Security is part of CSE and serves as Canada’s technical authority on cyber security.
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Historic defence investments announced in 2025 are enabling CSE to strengthen Canada’s digital foundations, including secure communications, classified cloud, cyber defence, artificial intelligence, post-quantum cryptography and other mission-critical capabilities.
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CSE’s Annual Report 2025–2026 is an unclassified summary of activities from April 1, 2025, to March 31, 2026.
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CSE does not target Canadians anywhere in the world or any person in Canada through its foreign intelligence or cyber operations activities.
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CSE operates under a strong legal, policy, compliance, review and oversight framework, including the Communications Security Establishment Act.
Associated links
Contacts
For more information, please contact (media only):
CSE Media Relations
media@cse-cst.gc.ca