Ukraine power grid attack — Sandworm BlackEnergy (2015)
The Russia-linked Sandworm group used spear-phishing, BlackEnergy3, and KillDisk to remotely flip breakers at three Ukrainian regional electricity distribution companies, cutting power to approximately 230,000 customers for 1–6 hours. It is the first publicly acknowledged successful cyberattack on an electric power grid in history.
- Victim
- Ukrainian regional electricity distribution companies (Oblenergos)