State-Sponsored Cyber Operations in Western Europe: A Critical Assessment

Introduction

As of March 2026, Western Europe faces an intensified threat landscape due to state-sponsored cyber operations. These activities, attributed to nation-state actors, have escalated in both frequency and sophistication, targeting critical infrastructure and governmental entities.

Attribution and Threat Actors

Recent analyses have identified Russian state-sponsored cyber activities as a primary concern. According to Microsoft's Digital Defense Report, nine of the top ten countries most affected by Russian cyber operations are NATO members, with attacks against these nations increasing by 25% compared to the previous year. (theguardian.com)

Additionally, Iranian-linked hacker groups have expanded their operations beyond the Middle East, targeting U.S. entities such as the medical device company Stryker. These groups aim to disrupt critical infrastructure and exert economic and psychological pressure on adversaries. (apnews.com)

Notable Incidents

• Latvia: In August 2025, two individuals set fire to a train and railway control equipment in Latvia on behalf of Russian interests. The perpetrators filmed the sabotage and sent the footage to those who commissioned the attack, who used the material to falsely claim the incident occurred in Ukraine. (apnews.com)

• Poland: The Cyberspace Defense Forces, established in February 2022, have been actively engaged in defending Poland's critical infrastructure against cyber threats. Their operations include both defensive and offensive cyber capabilities, reflecting Poland's commitment to enhancing its cyber defense posture. (en.wikipedia.org)

Defensive Measures and Military Cyber Units

In response to the escalating cyber threat, several Western European nations have bolstered their cyber defense capabilities:

• France: The Cyber Defence Regiment, established on 1 January 2025, is a dedicated cyber warfare unit within the French Army. Headquartered in Saint-Jacques-de-la-Lande, the regiment aims to enhance France's digital defense and security capabilities. (en.wikipedia.org)

• Belgium: Cyber Command, operational since 2022, is tasked with protecting Belgium's IT infrastructure against cyber threats. The command conducts both defensive and offensive cyber operations, including intelligence missions and countering disinformation campaigns. (en.wikipedia.org)

• United Kingdom: The 14th Signal Regiment (Electronic Warfare) provides electronic warfare capabilities in support of national operations worldwide. Based at Cawdor Barracks, the regiment is the only British Army unit capable of conducting sustainable electronic warfare. (en.wikipedia.org)

Conclusion

The current state-sponsored cyber operations in Western Europe present a critical threat to national security and critical infrastructure. The increasing frequency and sophistication of these attacks underscore the necessity for robust cyber defense strategies and international cooperation to mitigate potential risks.

Highlights:

• Iran-linked hackers take aim at US and other targets, raising risk of cyberattacks during war, Published on Thursday, March 12
• Latvia's security service says 2 people set fire to a train and rail equipment for Russia, Published on Thursday, March 12