Cyberattack disables Onsolve Code Red emergency alert system across St. Louis region

Databreaches •Dissent • November 22, 2025

Russell Kinsaul reports a serious situation in St. Louis, Missouri: A cyberattack has caused a nationwide outage of the Code Red emergency notification system, leaving cities and counties across the St. Louis region unable to use the popular system to send tornado warnings and other emergency alerts directly to residents’ phones. Code Red has been... Source

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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.

Cyberattack Disrupts CodeRED Emergency Alert System Nationwide The CodeRED emergency alert platform, operated by OnSolve, experienced a cyberattack that disrupted services across the United States, affecting the ability of cities and counties to send critical emergency notifications. The attack has also led to the exposure of user data, with the INC Ransomware gang reportedly involved in the incident. 3 sources 57

Cyberattack disables Onsolve Code Red emergency alert system across St. Louis region

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