Cybersecurity incident — 2015-12-23 00:00:00
Affected organization: Kyivoblenergo
Affected country: Ukraine
Industry: Utilities
Event type: Disruptive
Event subtype: External Denial of Service,Data Attack,Physical Attack
Motive: Sabotage
Actor: GRU Unit 74455 (SANDWORM)
Actor type: Undetermined
Actor country: Russian Federation

In December 2015, a threat actor compromised Kyivoblenergo, a power distribution company near Kyiv. This was part of a larger attack that disabled parts of the Ukrainian power grid.