Cybersecurity in Times of Conflict : Operational and Strategic Lessons from Ukraine

April 8, 2026April 8, 2026 By Dylan Massieux Actualités / Cyber CNI / Talkcyber,cybercni,cybersecurity,Cybersecurity in wartime,Cybersecurity Ukraine,talk,TALK.CYBER,ukraine,war,wartime

How does cybersecurity evolve when a country faces simultaneous and sustained kinetic and cyber attacks?

This question lies at the heart of TALK #45 of the Talk.CyberCNI conference series, hosted by Professor Marc-Oliver Pahl, with Taras Panchenko from the National University of Kyiv. Drawing on Ukraine’s real-world experience, this session provides a rare, operational perspective on cybersecurity in wartime conditions—far beyond theoretical models.

Cybersecurity in Wartime : From Theory to Operational Reality

This lecture highlights a major shift : in times of conflict, cybersecurity is no longer only about prevention—it becomes a matter of national resilience.

Several key dimensions are explored :

Protecting critical infrastructure under continuous attacks
Managing incidents during power and network outages
Ensuring communication resilience in degraded environments
Defending against information operations
Adapting governance and decision-making in crisis situations

Key Lessons from the Ukrainian Context

Ukraine’s experience reveals concrete—and sometimes striking—realities :

A single compromised account can disrupt infrastructure at a national scale
Cyber and physical attacks are deeply interconnected
Energy systems are primary targets, with cascading effects
Universities are becoming strategic targets
Digital services are emerging as key resilience enablers

Despite extreme conditions, Ukraine has accelerated its digital transformation, demonstrating that resilience and innovation can coexist—even in times of war.

What Are the Implications for European Organizations ?

This session provides valuable insights for :

CISOs
→ Strengthening business continuity under extreme conditions
→ Anticipating prolonged infrastructure disruptions

Researchers
→ Studying applied resilience and critical interdependencies
→ Evolving threat models based on real-world data

Policymakers
→ Positioning cybersecurity as a strategic sovereignty issue
→ Anticipating hybrid threats at the European level

Watch the Replay

This lecture offers a unique, experience-based perspective on cybersecurity in real conflict conditions, at the intersection of technical, operational, and strategic challenges.

It highlights actionable lessons to strengthen organizational resilience, anticipate major crisis scenarios, and rethink security approaches in the face of hybrid threats.

🎥 The replay of TALK #45 is available below :