Poland
POL
Coordinated OT cyberattack disrupts remote monitoring/control at 30+ Polish renewable plants
On 29 December 2025, a coordinated cyberattack targeted OT/ICS at more than 30 wind and solar plants in Poland. According to CERT Polska and CISA, destructive tools wiped HMI data and damaged RTUs/firmware, cutting remote monitoring and control even as generation continued, creating significant operational and safety concerns.
72
Estimated severity
72 / 100
90
Source reliability
90 / 100
Approximate Date
29/12/2025
Targeted Company
MULTIPLE POLAND RENEWABLE ENERGY PLANTS
Targeted Company Supply Chain Impact
Distribution & Fulfillment
Procurement & Sourcing
Production & Manufacturing
Sales (Retail & Ecommerce)
Warehousing
Service Delivery
Unrecognized Impact
Supply Chain Relations
No information
Geographic Impact
Country Targeted Company
Other Affected Countries
No other affected countries reported
Target country
Poland
Affected countries
Poland
Impacted regions
Europe · Poland
Operational Impact
Duration
No information
Financial impact (USD M)
No information
Impact types
OT or ICS disruptionOperational disruptionService degradation
Affected sectors
Energy & Utilities
Affected departments
Facilities & Physical OperationsInformation Technology
Attack Profile
Attack types
ICS/OT compromiseWiperMalwareExploitation of misconfigurationUnauthorized access
Attributed threat actors
No information
Sources
Incident Sources
cisa.govhttps://www.cisa.gov/news-events/alerts/2026/02/10/poland-energy-sector-cyber-incident-highlights-ot-and-ics-security-gapsindustrialcyber.cohttps://industrialcyber.co/industrial-cyber-attacks/cisa-alerts-on-ot-vulnerabilities-after-poland-energy-attack-damaged-rtus-and-wiped-hmi-datafortra.comhttps://www.fortra.com/blog/urgent-warnings-uk-and-us-cyber-agencies-after-polish-energy-grid-attackomicroncybersecurity.comhttps://www.omicroncybersecurity.com/en/resources/explained-ot-cyber-attack-on-polandcomputerbilities.comhttps://www.computerbilities.com/poland-energy-sector-cyber-attack-ot-ics-lessons