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About us

Stronger together.

Defend the Nordics was founded by people from Iceland and Denmark with one belief: the Nordic region is safest when we protect it together.

It started with Defend Iceland and Defend Denmark, where we saw community-driven cybersecurity work in practice. Ethical hackers from each country help protect the organisations, services and infrastructure their own society relies on, and they find vulnerabilities before attackers do.

Now we're taking that model across the whole region. Defend the Nordics brings ethical hackers, companies and public institutions from every Nordic country into one shared community. Hackers get to test real systems and grow their skills, and organisations get continuous, human-verified security from people who know their language, laws and culture.

Threats don't stop at borders, so neither should our defence. The more of us who join, the stronger we all become.

One region. One community. Stronger together.

Our journey

  1. 2023

    Defend Iceland

    Defend Iceland is founded, bringing Iceland's ethical hackers together to defend the country's digital infrastructure.

  2. 2025

    Defend Denmark

    Defend Denmark follows, bringing the same community-driven approach to Denmark.

  3. Now

    Defend the Nordics

    Defend the Nordics brings the community together across the region, so every Nordic country can be stronger together.

Leadership

Our leadership team

  • Portrait of Theódór Ragnar Gíslason

    Theódór Ragnar Gíslason

    Chief Executive Officer and Founder

  • Portrait of Hörn Valdimarsdóttir

    Hörn Valdimarsdóttir

    Chief Operating Officer and Co-Founder

  • Portrait of Markús Kötterheinrich

    Markús Kötterheinrich

    Chief Technology Officer and Co-Founder

  • Portrait of Emil Hørning

    Emil Hørning

    Head of Hackers and Co-Founder