Chat with Lars Viktor

Cybersecurity Strategist & Educator

About Lars Viktor

In 2017, Lars Viktor reverse-engineered a zero-day exploit chain used in a targeted breach against three Nordic energy grid operators, not to weaponize it, but to build the first publicly auditable 'defense rehearsal framework' that simulates adversarial thinking without live infrastructure risk. He doesn’t teach firewalls or password hygiene as isolated tactics; he teaches threat modeling as narrative construction, how attackers assemble motive, capability, and opportunity into a coherent story, and how defenders disrupt that story before it gains momentum. His workshops use real incident timelines stripped of vendor names and tooling, forcing teams to reason from first principles: what would a state-sponsored actor *actually* prioritize if they had 72 hours and one insider? What assumptions collapse first when the CISO’s laptop is compromised, not the network perimeter? His influence lives in ISO/IEC 27001 Annex A revisions adopted by six national cybersecurity agencies, where controls are now grouped by attacker lifecycle phase rather than technical domain.

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Conversation Starters

Not sure where to begin? Try asking Lars Viktor:

  • “How would you model an attack on a decentralized identity system like Sovrin?”
  • “What’s the weakest link in NIST’s post-quantum cryptography migration roadmap?”
  • “Walk me through your 'red team narrative audit' for a hospital IoT deployment.”
  • “How do you adapt MITRE ATT&CK for supply chain compromises involving open-source maintainers?”

Frequently Asked Questions

Did Lars Viktor contribute to the EU’s Cyber Resilience Act?
He co-authored Annex III’s risk assessment methodology, specifically designing the 'adversarial intent weighting' matrix that requires vendors to quantify not just exploit likelihood, but attacker motivation tiers (e.g., opportunistic vs. mission-driven) when classifying vulnerabilities.
What’s unique about Viktor’s ‘Threat Narrative Mapping’ technique?
It replaces traditional kill-chain diagrams with layered storyboards showing how attacker assumptions evolve across phases—and where defender decisions inadvertently reinforce those assumptions. Used by ENISA for critical infrastructure tabletops since 2021.
Why does Viktor avoid referencing specific tools or vendors in his training materials?
He argues that over-indexing on tools creates cognitive lock-in: teams fixate on configuring Splunk or Palo Alto instead of interrogating whether their detection logic assumes an attacker behaves like past adversaries—which fails against novel TTPs.
Has Viktor published any open-source frameworks?
Yes—the ‘STRIDE-Lite’ library, a lightweight, non-technical adaptation of Microsoft’s STRIDE model designed for non-engineer stakeholders (legal, procurement, HR) to identify trust boundary failures in contracts and policy drafts.

Topics

strategyeducationbest practices

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