Suisun City officials declared an emergency after a cyberattack disrupted the city's 911 and other emergency dispatch services [1, 2].
The disruption of emergency communications poses a direct risk to public safety, as residents may be unable to reach first responders during life-threatening crises.
The attack began at approximately 5:45 a.m. on Aug. 7, 2024 [1, 3]. City officials issued the emergency declaration later that morning to coordinate a response to the breach [1, 3].
Malicious software entered the city's information-technology systems, prompting officials to shut down the network entirely [1, 4]. This shutdown was intended to stop the spread of the malware and protect the remaining emergency communications infrastructure [1, 4].
Suisun City, located in Solano County in Northern California, serves approximately 30,000 residents [2, 3]. The city is situated northeast of San Francisco [2, 3].
Federal and state agencies have launched investigations into the source and scope of the breach. While some reports describe the situation as a state of emergency, others characterize it as a local emergency [1, 2].
City manager and emergency services officials oversaw the network shutdown to mitigate further damage. The city has not yet provided a timeline for the full restoration of all IT services.
“Suisun City officials declared an emergency after a cyberattack disrupted the city's 911 and other emergency dispatch services.”
This incident highlights the vulnerability of municipal infrastructure to malware, particularly in smaller cities where IT resources may be limited. The decision to shut down an entire network to save emergency services demonstrates the difficult trade-offs local governments face when balancing system availability with security containment.
