Zero Day

Zero Day

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Independent investigative blog (on Substack) analyzing high-profile hacks, cyber-espionage, and security policy

Cyberattack Targeting Poland’s Energy Grid Used a Wiper
NewsJan 23, 2026

Cyberattack Targeting Poland’s Energy Grid Used a Wiper

At the end of December, a wiper‑type malware dubbed DynoWiper attempted to compromise Poland’s power generation and distribution systems. European security firm ESET traced the code to the Russian Sandworm group with medium confidence, noting similarities to previous attacks on...

By Zero Day