INCIDENT: Ransomware Attack on Holiday at ME Wastewater Plant

In northern Maine, Limestone Water and Sewer District was hit on the Fourth of July holiday. Limestone Water and Sewer District Superintendent Jim Leighton said the ransomware attack impaired control computers at two plants necessitating both to revert to manual operations. The control computers were responsible for alarming on equipment damage (pumps over-heating) and operational errors (tanks over-filling).

Incident Date

July 4, 2021

Location

United States

Estimated Cost

Ransom requested, but not paid

Type of Malware:

No Malware identified

Threat Source:

No threat source identified

References:

  • Ransomware Attacks At 2 ME Wastewater Plants

Impacts

OT

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