Poland’s National Centre for Nuclear Research (NCBJ) hit by network compromise
Incident
Summary
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Poland’s National Centre for Nuclear Research (NCBJ) confirmed a cyberattack on its IT infrastructure, and the attempt was detected and blocked before causing impact. The incident matters because it targeted a major government nuclear research institute, yet no compromise or operational disruption was reported. NCBJ said its security systems and internal procedures contained the event quickly, and its MARIA reactor continued running safely at full power. The organization has informed authorities and opened an investigation while internal teams remain on alert for additional threats.
Related Happenings
Polish power grid hit by network compromise
Incident
First: 28.01.2026 18:06
Last: 28.01.2026 18:06
Sources 1
About this happening:
Dragos disclosed a late-December cyberattack on the Polish power grid that disrupted OT communication and control at distributed generation sites. The intrusion affected combined...
Polish power grid hit by network compromise
IncidentAbout this happening: Dragos disclosed a late-December cyberattack on the Polish power grid that disrupted OT communication and control at distributed generation sites. The intrusion affected combined...
Latest development: 29.01.2026 00:14
Dragos says a coordinated cyberattack on Poland's power grid in late December targeted multiple distributed energy resource (DER) sites across the country, including combined heat and power (CHP) facilities and wind and solar dispatch systems. The activity compromised OT systems, damaged key equipment beyond repair, disabled communications equipment at multiple sites, wiped Windows systems, and left power generation uninterrupted while affecting at least 12 confirmed sites, with Dragos estimating about 30. Dragos attributes the activity with moderate confidence to the Russian threat actor Electrum and describes it as distinct from Sandworm (APT44).
Sandworm destructive campaign against Poland’s power grid
Campaign
First: 26.01.2026 12:55
Last: 26.01.2026 12:55
Sources 1
About this happening:
**Sandworm** ran a **coordinated campaign** against **Poland’s power grid** in late December 2025, using a destructive wiper named **DynoWiper**. The activity targeted **two CHP p...
Sandworm destructive campaign against Poland’s power grid
CampaignAbout this happening: **Sandworm** ran a **coordinated campaign** against **Poland’s power grid** in late December 2025, using a destructive wiper named **DynoWiper**. The activity targeted **two CHP p...
Timeline
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13.03.2026 19:11 2 articles · 2mo ago
NCBJ cyberattack detected and blocked
Initial DisclosurePoland’s National Centre for Nuclear Research (NCBJ) said hackers targeted its IT infrastructure, and its security systems and internal procedures detected and blocked the intrusion before any impact or compromise. Director Jakub Kupecki said the MARIA reactor was not affected and continues to operate safely at full power, while the institute informed relevant authorities, opened an investigation, and kept internal security teams on high alert.
Show sources
- Poland's nuclear research centre targeted by cyberattack — www.bleepingcomputer.com — 13.03.2026 19:11
- Poland's nuclear research centre targeted by cyberattack — www.bleepingcomputer.com — 13.03.2026 19:11