When did the St. Joseph ransomware attack occur?

The city first detected the network issue around 2:30 a.m. on June 9, 2025. The city initially acknowledged via Facebook on Monday, June 9, that some services were down due to 'network issues,' and later on June 26 stated they were investigating network security issues.

How many people were affected by the St. Joseph cyberattack?

Approximately 11,000 St. Joseph residents were potentially affected by the ransomware attack. The city will be sending letters to all of these individuals.

What types of information were potentially exposed in the attack?

The specific types of exposed information have not been fully disclosed by the city, but the breach affected files from police department records, health department files, and personal information of city residents. The city has not provided detailed specifics about what personal data was compromised.

How did the ransomware attack impact St. Joseph city operations?

The attack had lasting impacts on city operations, forcing staff to rely on emergency measures such as Wi-Fi hotspots and manual processes to maintain essential services. Some processes remain interrupted, including daily dissemination of arrests, thefts, and vandalism reports to media outlets from the St. Joseph Police Department.

Is the city offering any protection services to affected residents?

Yes, the city is providing instructions for enrolling in complimentary credit monitoring and identity theft protection services at no cost to affected residents. These details will be included in the notification letters being sent to approximately 11,000 people.

How long did it take the city to publicly acknowledge the security incident?

The city initially acknowledged 'network issues' via Facebook on June 9, 2025, the same day they detected the problem. However, they didn't specifically mention it was a security investigation until June 26, 2025, more than two weeks later.

Did the city say there was any threat to public safety?

On June 26, 2025, the city stated that they were investigating network security issues and that no threat was posed to the public during the incident.

What should St. Joseph residents do if they think they're affected?

Affected residents should watch for notification letters from the city, which will include resources for protecting information and instructions for enrolling in free credit monitoring and identity theft protection services. Residents should also monitor their financial accounts and credit reports for any suspicious activity.

Incident

City of St. Joseph, Missouri hit by ransomware attack, exposing police and health department files

Q: What happened in the St. Joseph, Missouri cyberattack?

The City of St. Joseph, Missouri, experienced a ransomware attack in June 2025 that crippled city computer systems for an extended period and potentially exposed personal information belonging to approximately 11,000 residents. The cyberattack forced city staff to rely on emergency measures such as Wi-Fi hotspots and manual processes to maintain essential services.

Q: Are St. Joseph city services still affected by the ransomware attack?

Yes, some city processes remain interrupted following the June 2025 ransomware attack. This includes the daily dissemination of arrests, thefts, and vandalism reports to media outlets from the St. Joseph Police Department, indicating ongoing operational impacts.

Q: What emergency measures did St. Joseph implement during the attack?

City staff had to rely on emergency measures such as Wi-Fi hotspots and manual processes to maintain essential services while their computer systems were compromised by the ransomware attack.

published: Sept. 10, 2025

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The City of St. Joseph, Missouri, reports a ransomware attack that occurred in June 2025, which crippled city computer systems for an extended period and potentially exposed personal information belonging to approximately 11,000 residents.

The cyberattack forced city staff to rely on emergency measures such as Wi-Fi hotspots and manual processes to maintain essential services.

The city first detected the network issue around 2:30 a.m. on June 9, 2025. The city initially acknowledged via Facebook on Monday, June 9, that some of its services were down or temporarily unavailable due to "network issues," saying later on June 26 it was investigating network security issues and no threat was posed to the public.

The specific types of exposed information have not been fully disclosed by the city, but the breach affected files from:

Police department records
Health department files
Personal information of city residents

Letters will be sent to approximately 11,000 people and will include resources that can be used to protect information and instructions for enrolling in complimentary credit monitoring and identity theft protection services, free of charge.

The attack had lasting impacts on city operations. Some processes remain interrupted, including daily dissemination of arrests, thefts and vandalism reports to media outlets from the St. Joseph Police Department.

City of St. Joseph, Missouri hit by ransomware attack, exposing police and health department files

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