Cyberattack Cripples 911 — Emergency Declared

Emergency dispatcher at workstation with multiple monitors and phone — Photo: Mircea Moira / Shutterstock

Suisun City declared a state of emergency after a cyberattack knocked out 911 routing and other city systems, forcing officials to reroute emergency calls and keep responders working through backup channels.

Quick Take

The city said malicious software compromised its information technology systems early Friday and disrupted public safety operations.
Dispatchers moved calls through the Solano County dispatch center while police officers and firefighters kept responding to service calls.
Officials said there was no imminent threat to the public, even as online services and internal systems stayed offline.
The emergency declaration lets the city seek support and recover costs as it works with federal and state agencies.

What Suisun City Said Happened

Suisun City officials said malicious software infected and compromised city information technology systems beginning about 5:45 a.m. Friday. The city said the incident hit 911 routing, police and fire dispatch, records, and other city services. Council members then approved a local emergency at a special meeting Saturday morning. That step gives the city more room to request support and cover response costs while crews work to restore systems.

The city also said it shut down its computer network to contain the threat and preserve evidence for a federal investigation. Suisun City said it was working with the Federal Bureau of Investigation (FBI), the Department of Homeland Security, and the California Office of Emergency Services. Officials said online city services and internal operations were still unavailable while investigators and cybersecurity staff tried to bring systems back online safely.

How Public Safety Kept Moving

Officials said the cyberattack did not stop emergency response. Suisun City dispatchers took calls through the Solano County dispatch center, and city police officers and firefighters continued responding to calls for service. The city also said all public safety services remained active and that there was no imminent threat to the public. That mix of disruption and fallback support is now a common pattern in municipal cyber incidents.

Even when emergency systems stay technically alive, a network outage can still slow the work behind the scenes. Federal guidance and past reporting show that public safety agencies often shift to manual dispatching or alternate centers when computer-aided dispatch systems fail. That can keep help coming, but it reduces speed, visibility, and redundancy. In Suisun City, the rerouting to Solano County shows how fragile local response systems can be when one network goes dark.

Why the Case Matters Beyond One City

The Suisun City case fits a larger trend across local government. Cities are trying to reassure residents that police, fire, and 911 services still work, even while network shutdowns, lost records, and broken online systems show how deep the damage can be. The gap between public confidence and technical reality is often where the public learns the most about modern cyber risk. Local officials must manage both the attack and the public message at the same time.

The Suisun City Council declared a state of emergency Saturday after a cyberattack that shut down computer systems including 911 public safety operations.https://t.co/i725Z63gJ6 pic.twitter.com/JHzhxBrOHR

— NBC Bay Area (@nbcbayarea) August 9, 2026

That pressure is not just a California problem. Other cities have faced similar cyber incidents that forced emergency declarations, service rerouting, and temporary dependence on backup systems. The common lesson is simple: a city can keep answering the phone and still be in serious trouble. When one attack can shake 911 routing, city records, and public services at once, residents on both sides of the political divide are left asking whether government systems are built for the threats they now face.