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Ransomware Attacks against Water Treatment Plants

published on 2021-10-19 11:07:29 UTC by Bruce Schneier
Content:

According to a report from CISA last week, there were three ransomware attacks against water treatment plants last year.

WWS Sector cyber intrusions from 2019 to early 2021 include:

  • In August 2021, malicious cyber actors used Ghost variant ransomware against a California-based WWS facility. The ransomware variant had been in the system for about a month and was discovered when three supervisory control and data acquisition (SCADA) servers displayed a ransomware message.
  • In July 2021, cyber actors used remote access to introduce ZuCaNo ransomware onto a Maine-based WWS facility’s wastewater SCADA computer. The treatment system was run manually until the SCADA computer was restored using local control and more frequent operator rounds.
  • In March 2021, cyber actors used an unknown ransomware variant against a Nevada-based WWS facility. The ransomware affected the victim’s SCADA system and backup systems. The SCADA system provides visibility and monitoring but is not a full industrial control system (ICS).
Article: Ransomware Attacks against Water Treatment Plants - published about 3 years ago.

https://www.schneier.com/blog/archives/2021/10/ransomware-attacks-against-water-treatment-plants.html   
Published: 2021 10 19 11:07:29
Received: 2021 10 19 12:05:22
Feed: Schneier on Security
Source: Schneier on Security
Category: Cyber Security
Topic: Cyber Security
Views: 1

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