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Suisun City, Calif., Resumes Public Access After Cyber Attack

Govtech • September 24, 2026

In-person services will resume at City Hall this week. An investigation with state and federal authorities continues into the August incident, which prompted the shuttering of the city’s network.

(TNS) — After a cyber attack hit Suisun City just over a month ago, the city announced on Tuesday morning that public access to all City Hall departments is once again available.

The city announced that the cybersecurity incident and its overall impact are still under active investigation.

"The City is continuing to work alongside federal, state and regional agencies, including the FBI, Department of Homeland Security and the California Office of Emergency Services, to investigate the incident, maintain essential services and securely restore systems," the city wrote in a news statement on Tuesday. "As part of this ongoing process, the City will continue to thoroughly evaluate its systems and data.

The city declared a state of emergency in August following the cyber attack, which was first detected when malicious software compromised city IT systems. Officials shut down the city's network to contain the incident and preserve evidence for the investigation.

"It's exhausting," Prebula said of the response in August. "I've gone through things like fires and the earthquake in Napa in 2014, and the LNU fire, and it takes time, but we just keep moving forward."

Beginning this week, in-person services will resume with CIty Hall hours being 9 a.m. to noon and 1 to 5 p.m. Monday through Thursday, but closed on Friday. Housing Authority hours will be 1 to 5 p.m. on Monday and Tuesday, while the hours will switch to 9 a.m. to noon on Wednesday and Thursday.

Building and planning hours will be 9 a.m. to noon and 1 to 5 p.m. on Monday and Wednesday, while Tuesday and Thursday will be by appointment only. Police department hours will be 7 a.m. to noon and 12:30 p.m. to 5 p.m.

Suisun City dispatchers will continue to take 911 and non-emergency calls through the Solano County dispatch center. For additional needs, community members can go directly to the Police Department for other general assistance and standard department services.

For more information on the incident and impacts to city services, view the comprehensive FAQs at

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Suisun City Reopens City Hall After Malware Attack Disrupts Services Suisun City has reopened City Hall following a malware attack that occurred on August 7, 2026, which disrupted public safety systems including 911 routing and police dispatch. The city declared a state of emergency to facilitate access to resources and expedite recovery efforts. City officials shut down the IT network to contain the malware and preserve evidence for an ongoing federal investigation. While in-person services were suspended, essential public safety operations continued through the Solano County dispatch center. As of September 22, all City Hall departments have resumed operations, although the investigation into the incident is still ongoing. Officials have stated there is no evidence of personal data being accessed or stolen, but audits are being conducted to confirm this. No group has claimed responsibility for the attack, and it remains unclear if a ransom was paid. 3 sources 53

Suisun City, Calif., Resumes Public Access After Cyber Attack

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