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California city reports ransomware attack as LA transit agency finds ‘unauthorized activity’

Therecord.Media • March 20, 2026

Foster City warned that it is possible the hackers obtained public information, urging anyone that has done business with the city to change personal passwords and take measures to protect personal data.

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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.

Foster City Faces Ransomware Attack, Declares State of Emergency Foster City, California, experienced a ransomware attack on March 19, 2026, disrupting all non-emergency city services. The city's IT staff detected the breach early Thursday morning, leading to a temporary shutdown of public services while emergency operations, including 911, remained unaffected. City officials are investigating the extent of the breach, which may have exposed public records. As a precaution, residents and businesses that interacted with the city are advised to change their passwords and secure their personal data. City Manager Stefan Chatwin announced plans to declare a state of emergency to facilitate financial support for recovery efforts. External cybersecurity experts have been engaged to assist in the investigation and remediation of the incident. The investigation is ongoing, and the specific ransomware variant and threat actor have not yet been identified. 12 sources 69

California city reports ransomware attack as LA transit agency finds ‘unauthorized activity’

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Extracted Entities

Attack Types (1)

Companies (2)