Poland’s energy control systems were breached through exposed VPN access

Help Net Security

February 6, 2026 at 2:27 PM

Actively Exploited

Overview

On December 29, 2025, Poland's critical infrastructure faced a series of cyberattacks aimed at energy and industrial sectors, including wind and solar farms, a manufacturing company, and a combined heat and power plant. The attacks were executed by a single threat actor, as confirmed by Poland's national computer emergency response team, CERT Polska. Fortunately, these incidents were purely destructive and did not disrupt energy generation or distribution. The attackers gained access through exposed VPN connections, raising concerns about the security practices in place across the nation’s energy sector. This incident serves as a reminder of the vulnerabilities that can exist in critical infrastructure systems, emphasizing the need for improved cybersecurity measures.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: Energy control systems, wind farms, solar farms, manufacturing companies, combined heat and power plants
Action Required: Organizations should secure VPN access, conduct regular security audits, and implement stronger authentication measures.
Timeline: Ongoing since December 29, 2025

Original Article Summary

On 29 December 2025, coordinated cyberattacks unfolded across Poland’s critical infrastructure, targeting energy and industrial organizations. The attackers struck numerous wind and solar farms, a private manufacturing company, and a heat and power (CHP) plant, but failed to negatively affect energy generation or distribution. Poland’s national computer emergency response team, CERT Polska, assessed that all of the incidents were carried out by the same threat actor and were purely destructive in nature. Analysts say the … More → The post Poland’s energy control systems were breached through exposed VPN access appeared first on Help Net Security.

Impact

Energy control systems, wind farms, solar farms, manufacturing companies, combined heat and power plants

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Ongoing since December 29, 2025

Remediation

Organizations should secure VPN access, conduct regular security audits, and implement stronger authentication measures.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Critical.

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