USA Data Breaches: Government & public sector
US incidents involving government & public sector. This list is partial — we can only identify a sector when the organisation’s name says so.
Catawba County Data Breach Notice (Vermont Attorney General)
Catawba County notified Vermont residents of a data breach in a filing reported to the Vermont Attorney General on October 17, 2026, and the notice lists social security numbers, health…
Lee County Mosquito Control District Data Breach Notice (Vermont Attorney General)
Lee County Mosquito Control District notified Vermont residents of a data breach in a filing reported to the Vermont Attorney General on September 23, 2026, and the notice lists social…
Queen Anne’s County Data Breach Notice (Massachusetts Attorney General)
Queen Anne’s County notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on August 11, 2026, and the notice lists social…
The City of New Britain Data Breach Notice (Massachusetts Attorney General)
The City of New Britain notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on July 30, 2026, and the notice lists social…
North Los Angeles County Regional Center Data Breach Notice (Vermont Attorney General)
North Los Angeles County Regional Center notified Vermont residents of a data breach in a filing reported to the Vermont Attorney General on June 30, 2026, and the notice lists social…
North Los Angeles County Regional Center Data Breach Notice (Massachusetts Attorney General)
North Los Angeles County Regional Center notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on June 30, 2026, and the…
Town of Wilbraham Data Breach Notice (Massachusetts Attorney General)
Town of Wilbraham notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on June 30, 2026, and the notice lists social…
City of Bedford, Texas Data Breach Notice (Massachusetts Attorney General)
City of Bedford, Texas notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on May 18, 2026, and the notice lists social…
Mitchell County Data Breach Notice (Massachusetts Attorney General)
Mitchell County notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on May 05, 2026, and the notice lists social security…
Thornton Township Data Breach Notice (Massachusetts Attorney General)
Thornton Township notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on April 20, 2026, and the notice lists social…
Town of Apex, North Carolina Data Breach Notice (Massachusetts Attorney General)
Town of Apex, North Carolina notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on March 30, 2026, and the notice lists…
Department of Developmental Services (DDS) Commonwealth of MA Data Breach Notice (Massachusetts Attorney General)
Department of Developmental Services (DDS) Commonwealth of MA notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on March…
Wayne County, Michigan Data Breach Notice (Massachusetts Attorney General)
Wayne County, Michigan notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on March 05, 2026, and the notice lists social…
Hingham Municipal Lighting Plant Data Breach Notice (Massachusetts Attorney General)
Hingham Municipal Lighting Plant notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on March 03, 2026, and the notice…
City of Carthage, Texas Data Breach Notice (Massachusetts Attorney General)
City of Carthage, Texas notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on February 24, 2026, and the notice lists…
Town of Ashland Data Breach Notice (Massachusetts Attorney General)
Town of Ashland notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on February 18, 2026, and the notice lists social…
Legal Aid Service of Broward County Data Breach Notice (Massachusetts Attorney General)
Legal Aid Service of Broward County notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on February 10, 2026, and the…
City of Peabody, MA Data Breach Notice (Massachusetts Attorney General)
City of Peabody, MA notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on February 09, 2026, and the notice lists social…
The Town of Vienna Data Breach Notice (Massachusetts Attorney General)
The Town of Vienna notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on February 03, 2026, and the notice lists social…
Town of Bellingham Data Breach Notice (Massachusetts Attorney General)
Town of Bellingham notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on February 03, 2026, and the notice lists social…
Middlesex Sheriff's Office Data Breach Notice (Massachusetts Attorney General)
Middlesex Sheriff's Office notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on January 30, 2026, and the notice lists…
Box Elder County Data Breach Notice (Massachusetts Attorney General)
Box Elder County notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on December 26, 2025, and the notice lists social…
Bucks County Opportunity Council Data Breach Notice (Massachusetts Attorney General)
Bucks County Opportunity Council notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on December 22, 2025, and the notice…
Town of Blackstone Police Department Data Breach Notice (Massachusetts Attorney General)
Town of Blackstone Police Department notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on December 19, 2025, and the…
Department of Revenue Data Breach Notice (Massachusetts Attorney General)
Department of Revenue notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on November 25, 2025, and the notice lists social…
Mecklenburg County Public Schools Data Breach Notice (Massachusetts Attorney General)
Mecklenburg County Public Schools notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on November 14, 2025, and the notice…
Village of Mundelein Data Breach Notice (Massachusetts Attorney General)
Village of Mundelein notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on November 13, 2025, and the notice lists social…
City of Royal Oak, Michigan Data Breach Notice (Massachusetts Attorney General)
City of Royal Oak, Michigan notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on November 12, 2025, and the notice lists…
Chester County Library System Data Breach Notice (Massachusetts Attorney General)
Chester County Library System notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on November 07, 2025, and the notice…
Massachusetts Department of Early Education and Care Data Breach Notice (Massachusetts Attorney General)
Massachusetts Department of Early Education and Care notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on October 27…
The City of Pittsfield Data Breach Notice (Massachusetts Attorney General)
The City of Pittsfield notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on October 07, 2025, and the notice lists social…
City of Pittsburg, California Data Breach Notice (Massachusetts Attorney General)
City of Pittsburg, California notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on October 02, 2025, and the notice lists…
Union County Commissioners Data Breach Notice (Massachusetts Attorney General)
Union County Commissioners notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on September 30, 2025, and the notice lists…
Lorain County Auditor's Office Data Breach Notice (Massachusetts Attorney General)
Lorain County Auditor's Office notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on September 19, 2025, and the notice…
The Town of Chester Data Breach Notice (Massachusetts Attorney General)
The Town of Chester notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on September 05, 2025, and the notice lists social…
Prince George County Public Schools Data Breach Notice (Massachusetts Attorney General)
Prince George County Public Schools notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on August 28, 2025, and the notice…
Howell Township Public Schools Data Breach Notice (Massachusetts Attorney General)
Howell Township Public Schools notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on August 21, 2025, and the notice lists…
Massachusetts Municipal Wholesale Electric Data Breach Notice (Massachusetts Attorney General)
Massachusetts Municipal Wholesale Electric notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on July 21, 2025, and the…
Gloucester County, Virginia Data Breach Notice (Massachusetts Attorney General)
Gloucester County, Virginia notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on July 02, 2025, and the notice lists…
The Commonwealth of Massachussets Department Of Revenue Data Breach Notice (Massachusetts Attorney General)
The Commonwealth of Massachussets Department Of Revenue notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on June 27…
Marin Housing Authority Data Breach Notice (Massachusetts Attorney General)
Marin Housing Authority notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on June 17, 2025, and the notice lists social…
Maverick County, Texas Data Breach Notice (Massachusetts Attorney General)
Maverick County, Texas notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on May 30, 2025, and the notice lists social…
City of St. Cloud, Florida Data Breach Notice (Massachusetts Attorney General)
City of St. Cloud, Florida notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on May 29, 2025, and the notice lists social…
City of Sheboygan, Wisconsin Data Breach Notice (Massachusetts Attorney General)
City of Sheboygan, Wisconsin notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on May 23, 2025, and the notice lists…
Community Counseling of Bristol County Data Breach Notice (Massachusetts Attorney General)
Community Counseling of Bristol County notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on May 20, 2025, and the notice…
The City of Gloversville, New York Data Breach Notice (Massachusetts Attorney General)
The City of Gloversville, New York notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on May 02, 2025, and the notice…
Charleston County School District Data Breach Notice (Massachusetts Attorney General)
Charleston County School District notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on April 29, 2025, and the notice…
The City of Long Beach, CA Data Breach Notice (Massachusetts Attorney General)
The City of Long Beach, CA notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on April 15, 2025, and the notice lists…
City of Lake Jackson Data Breach Notice (Massachusetts Attorney General)
City of Lake Jackson notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on April 02, 2025, and the notice lists social…
Houston Housing Authority Data Breach Notice (Massachusetts Attorney General)
Houston Housing Authority notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on March 27, 2025, and the notice lists…
Department of Revenue Data Breach Notice (Massachusetts Attorney General)
Department of Revenue notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on March 04, 2025, and the notice lists social…
Lincoln County School District Data Breach Notice (Massachusetts Attorney General)
Lincoln County School District notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on March 02, 2025, and the notice lists…
City of Cedar Falls Data Breach Notice (Massachusetts Attorney General)
City of Cedar Falls notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on February 25, 2025, and the notice lists social…
Town of Bourne Data Breach Notice (Massachusetts Attorney General)
Town of Bourne notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on February 21, 2025, and the notice lists social…
City of Roseburg Data Breach Notice (Massachusetts Attorney General)
City of Roseburg notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on February 15, 2025, and the notice lists social…
Muscogee County School District Data Breach Notice (Massachusetts Attorney General)
Muscogee County School District notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on February 11, 2025, and the notice…
City of Hayward Data Breach Notice (Massachusetts Attorney General)
City of Hayward notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on January 29, 2025, and the notice lists social…
The City of Amesbury Data Breach Notice (Massachusetts Attorney General)
The City of Amesbury notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on January 14, 2025, and the notice lists social…
Hamilton Township School District Data Breach Notice (Massachusetts Attorney General)
Hamilton Township School District notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on November 25, 2024, and the notice…
Town of Provincetown, MA Data Breach Notice (Massachusetts Attorney General)
Town of Provincetown, MA notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on November 19, 2024, and the notice lists…
Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.