This comes against a backdrop of increased Russian hybrid war attacks against Europe. Truesec has already assessed that the risk of hybrid war and destructive cyberattacks against Europe from Russia is heightened. The warning reiterates that the threat of cybercrime and cyber espionage are the two most prevalent cyber threats against the Nordics. [3][4][5]
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Assessment
Russia is conducting an escalating campaign of hybrid threats against Europe to pressure European nations into reducing their support for Ukraine. Cyber activism and destructive cyber attacks are part of this campaign. The main reason for this escalation is assessed to be growing pressure on the Russian government from the combined effects of ongoing Western sanctions, Ukrainian long-range strikes on Russian infrastructure [6], and Ukrainian successes during their summer offensive, particularly during “Operation Vivaldi” in Eastern Ukraine [7].
At the same time, it is important to distinguish between different types of cyber threats. Cybercrime, cyber espionage, and cyber warfare are separate threat categories conducted by actors with different motivations, although there are examples of overlap.
- Cybercrime and cyber espionage remain the most common cyber threats. These threats persist regardless of the war in Ukraine. For most organizations, cybercrime continues to represent the most significant cyber threat, and this assessment is unchanged by the current warning.
- Russia is conducting an ongoing and escalating campaign of cyber and information operations. This includes Russian “hacktivism” and influence activities aimed primarily at creating fear and uncertainty rather than causing substantial physical damage. Such activities include DDoS attacks, the compromise of CCTV systems, and the manipulation of smaller, less protected components of critical infrastructure. The threat level has increased, meaning these attacks are likely to become both more frequent and potentially more disruptive.
- Russia is increasingly targeting entities directly involved in Western support for Ukraine. This includes destructive attacks and the use of proxy or disposable agents to target key individuals in the defense sector, as well as factories, warehouses, and critical infrastructure that form part of Western supply chains supporting the Ukrainian armed forces. The risk of such attacks has also increased and could, in the future, extend further into the cyber domain.
An escalation to direct military action by Russia against a NATO member, even on a limited scale, is still assessed as unlikely. However, it can no longer be completely ruled out. Such an attack would likely be accompanied by destructive cyber operations intended to support military activities on the ground and disrupt Western decision-making processes.
This represents a low-probability, high-impact scenario. Organizations should remain vigilant against potential cyber attacks while recognizing that creating fear and uncertainty is itself a key objective of many of these operations. Panic only serves the adversary.
If you or your organization has concerns about the activity described above or requires support, please contact your Truesec representative for further assistance.
References
[1] https://samsik.dk/publikation/the-cyber-threat-against-denmark/
[2] https://www.fe-ddis.dk/globalassets/fe/dokumenter/2026/trusselsvurderinger/-assessment-of-the-threat-from-russia-.pdf
[3] https://www.truesec.com/hub/blog/ddos-attacks-against-norwegian-government-sites
[4] https://www.truesec.com/hub/blog/recent-increase-of-hybrid-attacks-against-defense-sector-in-europe
[5] https://www.truesec.com/hub/blog/russia-recruits-members-of-the-com-for-sabotage-operations
[6] https://www.defenceukraine.com/en/insights/ukraine-deep-strike-refineries-economic-warfare-2026/
[7] https://defencematters.eu/operation-vivaldi-ukraine-counter-offensive-lyman/
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Article Link: Danish SAMSIK and Defence Intelligence Services Raises Threat Level For Destructive Cyberattacks - Truesec