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“Tentacles of Hamas”: Mossad reveals a vast terrorist network dismantled in Europe

The Israeli Prime Minister’s office, acting on behalf of Mossad, revealed Wednesday a large-scale international operation aimed at neutralizing Hamas terrorist infrastructure located in the heart of Europe. The result of a long-term investigation and close cooperation between European intelligence services and security forces, this offensive led to the seizure of weapons caches and the arrest of several active members of the Islamist terrorist movement.

In Germany, Austria, and other countries, coordinated raids have led to the discovery of clandestine cells ready to act “on command.” In Vienna, an operation conducted in September by the Austrian intelligence service (DSN) resulted in the seizure of pistols and explosive devices intended for attacks against Israeli and Jewish targets.

According to investigators, this cache belonged to Muhammad Naim, son of Bassem Naim, a senior Hamas official and close associate of the movement’s leader in Gaza, Khalil al-Haya. A meeting between father and son in Qatar in September suggests the direct involvement of Hamas’s political leadership in planning attacks on European soil, despite repeated denials.

The investigation also explores a Turkish aspect: an important member of the network, Burhan al-Khatib, was arrested in Germany after a stay in Turkey, long considered a privileged area of ​​activity for Hamas.

For Mossad, this case illustrates the scale of the threat and the growing importance of international cooperation. Since October 7, Hamas has intensified its efforts to establish operational cells in Europe, mirroring Iran and its proxies, according to the Israeli agency, which claims to continue thwarting “dozens of plots” around the world.

Incident Details

Type of Incident: Arrest
Date of Incident: November 19, 2025
City:
Country: EU

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About Sentinel

SENTINEL is a European project funded by the European Commission and led by the Security and Crisis Centre (SACC by EJC), the security arm of the European Jewish Congress. It brings together the International Centre for Counter-Terrorism (ICCT), national-level Jewish communities from Austria, Czech Republic, Hungary, Italy, and Spain, the European Union of Jewish Students, with the support of the Italian Carabinieri and the Police Presidium of the Czech Republic.

The project is designed to strengthen the protection of Jewish places of worship across the European Union through a coordinated set of activities over a three-year period.

SENTINEL will harness AI-enhanced open-source intelligence to monitor and assess current, emerging, and future threats. It will also equip Jewish communities with practical tools, including a mobile security application with a panic button and an interactive map built on real-time incident data.

Training and capacity-building are at the core of the project. These include scenario-based security exercises, crisis management seminars, and both in-person and online training sessions for community security trustees. SENTINEL will also organise EU-wide and local conferences to foster collaboration between Jewish communities, public authorities, and law enforcement agencies.

Complementing these efforts, national and local workshops will promote knowledge-sharing and preparedness, alongside pilot training programmes for law enforcement. A dedicated podcast series will help raise awareness by exploring threat assessments and potential responses.

With its wide-reaching and inclusive approach, SENTINEL will directly benefit to Jewish communities across 23 EU Member States, enhancing resilience, strengthening preparedness, and building long-term cooperation with law enforcement to meet today’s evolving security challenges.