INCIDENT: NC Water authority hit with Ryuk Ransomware

ONWASA (North Carolina) was hit with Ryuk ransomware in middle of night of Oct 10 attacking the utility's servers and personal computers. This attack is following the spread of the "polymorphic" EMOTET that spread through their networks beginning on Oct 4. ONWASA CEO said that they experienced a catastrophic loss inside their computer network. ONWASA vowed not to pay any ransom and to instead “undertake the painstaking process of rebuilding its databases and computer systems from the ground up.”

Incident Date

October 10, 2019


United States

Estimated Cost


Type of Malware:

Threat Source:

No threat source identified


  • ONWASA: $277K spent on recovery, defense after cyber attack [Jan 2019]
  • Feds Investigate After Hackers Attack Water Utility



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