August 3, 2026 - Cyber Attacks on Water Systems Update
Infrastructure System? Cybersecurity and Infrastructure Security Agency (CISA) released an alert in response to multiple cyber attacks on critical infrastructure: https://www.cisa.gov/news-events/alerts/2026/07/30/cisa-urges-water-and-wastewater-systems-sector-protect-ot-against-activity-targeting-plcs
CISA recommend organizations take certain actions and provide the following resources:
To securely enable remote access to your OT systems, CISA recommends system owners, operators, and integrators see the following resources for guidance:
- CISA: Primary Mitigations to Reduce Cyber Threats to Operational Technology
- United Kingdom's National Cyber Security Center: Secure Connectivity Principles for Operational Technology
- Federal Bureau of Investigation (FBI): Malicious Cyber Actors Targeting Water and Wastewater Sector Internet Facing Programmable Logic Controllers, Causing Operational Disruptions
For additional support, contact the Environmental Protection Agency’s Cybersecurity Technical Assistance Program for the Water Sector or your CISA Regional Office. (
To report a cyber incident, contact CISA’s 24/7 Operations Center (contact@cisa.dhs.gov), or call 1-844-Say-CISA (1-844-729-2472). Please see Reporting a Cyber Incident for more details or contact FBI’s Internet Crime Complaint Center (IC3) or your local FBI field office.
