← Back to Feed
ESET Research: Sandworm behind cyberattack on Poland’s power grid in late 2025
January 23, 2026 · WeLiveSecurity · Severity: HIGH
The attack involved data-wiping malware that ESET researchers have now analyzed and named DynoWiper
Key Takeaways
- ESET Research attributed the late-2025 cyberattack on Poland's power grid to the Sandworm threat group.
- The Polish grid attack involved destructive data-wiping malware that ESET researchers later analyzed and named DynoWiper.
- Critical infrastructure operators should harden defenses against Sandworm-style wiper attacks and maintain tested offline backups.