Government Data Breaches — Page 3

Harrison County, West Virginia experienced a cybersecurity incident in 2026 that disrupted county services. It is unclear if personal data was compromised.

Winona County experienced a data breach in 2026 affecting 6,196 individuals, which was confirmed by a Maine AG filing.

The California Attorney General reported a data breach involving the County of Santa Barbara Health Department. The details of the breach, including the date it occurred and the types of data affected, are not yet available.

No evidence of a data breach involving the Sonoma County Department of Emergency Management has been found as of May 2026.

A data breach involving the City of Marina, California was reported, but no further details such as the date, types of data compromised, or the number of affected individuals have been publicly disclosed.

Research indicates no confirmed data breach for the Housing Authority of the City of Los Angeles (HACLA) in 2026. A separate incident involved the City of Los Angeles Attorney's Office in March 2026, which exposed sensitive files from civil lawsuits.

A data breach involving the East Bay Regional Park District has been reported to the California Attorney General, though no further details about the nature or scope of the breach are publicly available as of May 2026.

A data breach impacting The City of San Jose, California was reported, but details regarding its occurrence and affected individuals are currently unavailable.

A reported data breach purportedly affected the City of Sandstone around May 2026, but this incident remains unconfirmed by official sources.

Wyoming County, New York government website, wyomingcountyny.gov, was reportedly affected by a ransomware incident in 2026. Details of the incident remain largely unconfirmed by official sources.

The Town of Norwell, MA, may have experienced a data breach in 2026, according to reports from ransomware monitoring sites. Official confirmation from the town is not available.

The Qilin ransomware group allegedly breached Morgan County 911, an emergency services provider, in 2026. This report is based on information from the Qilin ransomware group's dark web portal.

Thornton Township experienced a data breach in March 2025, confirmed in April 2026, potentially affecting over 153,000 individuals.

St. Joseph County experienced a claimed data breach in late March 2026, involving unauthorized access to an external fax service and exfiltration of sensitive data.

The Faulkner County Sheriff's Office experienced a reported cyberattack in April 2026, with the Qilin ransomware group claiming responsibility and threatening to leak sensitive data. No confirmed data breach or data leak has occurred.

The State Road and Tollway Authority data breach occurred on April 1, 2026, when the Qilin ransomware group claimed an attack. Details about affected individuals and data types remain unconfirmed.

The Town of Amherst experienced a data breach in February 2026, disclosed through a regulatory filing in April 2026.

The Town of Apex, North Carolina, experienced an external system breach in June 2024, affecting over 22,000 individuals.

The Oklahoma Tax Commission experienced a data breach between July 2024 and December 2025, affecting at least 14 Maine residents.

Meriden, CT, a government entity, reportedly experienced a data breach in March 2026, when the Incransom group listed it as a victim.

The City of Washington Court House experienced a data breach between May 17-18, 2025, which was discovered on March 16, 2026. This incident involved an external system breach affecting 4,982 individuals.

Reports describe a City of Los Angeles (LA) data breach in 2026, but the available web research does not support this claim.

The Town of Blacksburg government experienced a ransomware attack in March 2026, claimed by the Worldleaks group.

Fannin CAD experienced a data breach in March 2026, with the Exitium ransomware group claiming to have exfiltrated 400 GB of data.