Overview
- Malicious software infected Suisun City’s IT systems at about 5:45 a.m. on Friday, Aug. 7, and city leaders shut down the entire network to stop the intrusion and preserve evidence for investigators.
- The Suisun City Council unanimously declared a state of emergency at a special meeting on Saturday to speed access to technical aid and to recover costs tied to the incident.
- Emergency calls have been routed through the Solano County dispatch center and local police and fire crews continued in-person responses while city dispatch systems stayed offline.
- The FBI, Department of Homeland Security and the California Office of Emergency Services have joined the active investigation but officials have not identified how the malware entered the network or who is responsible and there is no timeline for full restoration.
- The attack highlights growing risks for smaller cities that run legacy systems and limited cyber budgets and could increase pressure for more coordinated federal aid and funding to protect local public-safety infrastructure.