'Denial of service' attack caused grid cyber disruption: DOE
Source: E&E News
'Denial of service' attack caused grid cyber disruption: DOE
Blake Sobczak, E&E News reporter
Energywire: Thursday, May 2, 2019
A recent cyber disruption to the U.S. grid involved a "denial of service condition" at a Western utility, according to a Department of Energy official.
On March 5, an unidentified power company fell victim to a "cyber event" that interfered with operations but stopped short of causing blackouts, according to a DOE filing this week.
A DOE official confirmed yesterday that the event "did not impact generation, the reliability of the grid or cause any customer outages."
But the denial-of-service attack was significant enough for the utility to file an electric disturbance report with DOE the same forms reserved for major interruptions like storms, physical attacks or fuel shortages (Energywire, April 30).
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