United States
USA
Malware attack disrupts Suisun City emergency and municipal services
Malicious software compromised Suisun City's IT environment on 7 August 2026. To contain the incident, the city shut down its entire IT network, disrupting 911 routing, police and fire dispatch, records, online services and other municipal operations. Emergency dispatch was rerouted through Solano County and multiple public-facing city services remained unavailable or restricted during restoration. Unidentified perpetrators subsequently made demands to the city.
82
Estimated severity
82 / 100
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Source reliability
No information
Approximate Date
07/08/2026
Targeted Company
SUISUN CITY
Targeted Company Supply Chain Impact
Distribution & Fulfillment
Procurement & Sourcing
Production & Manufacturing
Sales (Retail & Ecommerce)
Warehousing
Service Delivery
Unrecognized Impact
Supply Chain Relations
No information
Geographic Impact
Country Targeted Company
Other Affected Countries
No other affected countries reported
Target country
United States
Affected countries
United States
Impacted regions
California · United States
Operational Impact
Duration
No information
Financial impact (USD M)
No information
Impact types
Service unavailabilityService degradationOperational disruption
Affected sectors
Government & Public Administration
Affected departments
Information TechnologyCustomer Service
Attack Profile
Attack types
MalwareExtortion
Attributed threat actors
No information
Sources
Incident Sources
suisun.comhttps://www.suisun.com/News-articles/Suisun-City-Council-Declares-State-of-Emergency-in-response-to-Cybersecurity-Incidentsuisun.comhttps://www.suisun.com/News-articles/20260810Suisun-City-Issues-Update-on-Cybersecurity-Incident-and-Impact-to-City-Servicessuisun.comhttps://www.suisun.com/News-articles/20260825Suisun-City-Provides-Update-on-Public-Access-to-City-Services-and-City-Council-Meeting