Archive · 8 Sep 2026
Online Nihilistic Extremism Emerges as New European Terror Threat
A new kind of violent online group is worrying European authorities.
Many members appear to be young people who share violent material and encourage one another.
They may seek attention or status rather than support a political cause.
Some online activity has been connected to real-world stabbings and murder plans.
Police found thousands of web addresses linked to one network called The COM.
Another group, called 764, has also attracted attention from investigators.
Artificial intelligence can make violent propaganda and recruitment spread faster.
Police say they need better digital tools to stop these threats.
Privacy advocates worry that stronger surveillance could unfairly intrude on people’s private conversations.
Investigators in nine European countries found about 4,340 web addresses linked to the online network known as “The COM.”
The emerging threat centers on young people using online communities to seek status through violence rather than pursuing a clear political ideology.
European Union officials linked the trend to offline attacks, including stabbings and planned murders in Finland and Italy.
Europol reported 45 terrorist attacks across 10 European Union countries last year, with jihadist groups responsible for 24 attacks and more than 70% of terror-related arrests.
Authorities and privacy advocates disagree over how far law enforcement should go in monitoring encrypted online communities and digital communications.
- Who
- European police investigators, Europol, EU Counter-Terrorism Coordinator Bartjan Wegter, and young people involved in online nihilistic violent-extremism networks.
- What
- Authorities identified an emerging online threat involving violence for its own sake, including networks linked to real-world attacks.
- When
- The threat has reportedly increased over the past two to three years; investigators conducted a disruption campaign in June and July, and one cited Finnish case occurred in 2025.
- Where
- Across Europe, in online communities and in incidents reported in Finland, Italy, and Germany.
- Why
- Young participants may seek notoriety, status, excitement, or self-assertion through violent content and acts, while online platforms and artificial intelligence can amplify propaganda and recruitment.
Privacy and Civil-Liberties Advocates
Law-Enforcement and Security Officials
Digital surveillance
Privacy and Civil-Liberties Advocates
People have a fundamental right to communicate without unjustified intrusion, and authorities or companies may undermine privacy through spyware and other methods.
Law-Enforcement and Security Officials
Law enforcement needs tools suited to threats that increasingly operate online; Bartjan Wegter said 85% of investigations take place in the digital environment.
Platform responsibility
Privacy and Civil-Liberties Advocates
Expanded monitoring of online communities and encrypted communications could weaken protections for legitimate users.
Law-Enforcement and Security Officials
Officials argue that online spaces are too permissive and can connect, amplify, and organize violent threats that later move offline.
- Network identified
- Investigators found about 4,340 URL web addresses linked to “The COM.”
- Countries involved in investigation
- Police investigators from nine European countries participated in the campaign.
- Terrorist attacks reported
- Forty-five attacks were reported across 10 European Union countries last year; about half were foiled or failed.
- Terror-related arrests
- Europol reported 486 arrests involving suspected terror links in 21 EU member countries.
- Jihadist involvement
- Jihadist groups were linked to 24 of the reported attacks and more than 70% of the arrests.
- Age profile
- Around one-third of those arrested were under 18, mostly boys.
- Artificial intelligence
- Europol said AI was used to amplify propaganda, support recruitment, and assist attack preparation.