Privacy UnpackedSector
Data breaches in government
122 organisations in government with a confirmed or reported breach on the tracker, newest first.
- Last 30 days
- 9
- 2026 so far
- 71
- On record
- 122
- Median days to tell
- 162
From the day a breach began to the day it was first reported, a median of 162 days, over the 87 breaches in this sector whose notice gives a start date.
What was taken most often
- ID numbers28
- Names20
- Health information15
- Home addresses10
- Card and bank details9
- Dates of birth7
The number of breaches in which each kind of data was exposed.
The largest
- City of Osakareported Email addresses 1Memail addresses
- City of Suffolk, Virginia Social Security numbersFinancial account and card detailsNames 157.7Kpeople
- City of Middletown 123.8Kpeople
- Winona County Social Security numbers 123.5Kpeople
- City of McMinnville Social Security numbersDriver’s license numbersGovernment ID numbers+1 122.9Kpeople
Every breach, newest first
- Colorado County, Texas Social Security numbersHealth and medical informationNames+1 5.5KTexas residents
- City of Osakareported Email addresses 1Memail addresses
- Ministry of Foreign Affairsreported Email addressesNames 3.6Krecords
- VT Department of Labor Social Security numbers 1Vermont residents
- Staffordshire Policereported Personal information –not reported
- U.S. Department of Homeland Securityreported Government ID numbersEmail addressesPhone numbers+21 41Kemployees
- Alliance Police Nationalereported Data –not reported
- Department of Defensereported Social Security numbers –not reported
- Federal Court of Australiareported Court filesCourt transcriptsSensitive family court data –not reported
- City of Foster City 5.1Kpeople
- Isle of Wight Councilreported Children's details –not reported
- Murray County Government ID numbersHealth and medical information 6.6Kpeople
- The City of Mt. Angel 471Oregon residents
- Winona County Social Security numbers 123.5Kpeople
- City of Leavenworth, KS 8.5Kpeople
- The Woodlands Art Council Financial account and card details 1Vermont residents
- The Woodlands Arts Council Financial account and card detailsNames 2.9Kpeople
- City of McMinnville Social Security numbersDriver’s license numbersGovernment ID numbers+1 122.9Kpeople
- Association of the Bar of the City of New York Financial account and card details 3.8Kpeople
- The City of Jacksonville, TX Social Security numbersGovernment ID numbersHealth and medical information+2 250Texas residents
Show 102 more
- The Housing & Redevelopment Authority of Clay County 8.7Kpeople
- Catawba County Social Security numbersHealth and medical information 55Indiana residents
- City of North Adams Social Security numbers 17Vermont residents
- Coryell County, Texas Social Security numbersDriver’s license numbersHealth and medical information+3 542Texas residents
- St. Joseph County, Indiana 380people
- Duval County, Texas Social Security numbersDriver’s license numbersHealth and medical information+2 474Texas residents
- Indiana Professional Licensing Agency 1people
- City of Brandenburg 499people
- City of Marion Iowa –not reported
- Texas Department of Criminal Justice Social Security numbersNames 1.5KTexas residents
- Southwestern Vermont Council on Aging Health and medical information 14Vermont residents
- Chelan County, WA Social Security numbersPassport numbersDriver’s license numbers+10 –not reported
- The City of New Britain Social Security numbersHealth and medical information 5Vermont residents
- Fresno County Department of Social Services –not reported
- Regional Center of Orange County –not reported
- Kootenai County, ID Social Security numbers 20.8Kpeople
- Department of Child Services - Child Support Bureau 289people
- Jennings County Government 1.4Kpeople
- Nacogdoches County, Texas Social Security numbersDriver’s license numbersHealth and medical information+2 1.1KTexas residents
- Town of West Point, Virginia 3.1Kpeople
- Prince George County, Virginia 1.2Kpeople
- City of La Vergne, Tennessee Social Security numbers 25.7Kpeople
- Aransas County, Texas Social Security numbersDriver’s license numbersNames 1.2KTexas residents
- City of Roanoke Virginia 744people
- Los Angeles County Department of Public Social Services –not reported
- Gay & Lesbian Community Services Center of Orange County 1.2KWashington residents
- City of Middletown 123.8Kpeople
- Harrison County Commission Office 2.8Kpeople
- Sacramento County –not reported
- City of Bedford, Texas Social Security numbersDriver’s license numbersGovernment ID numbers+6 14.3Kpeople
- Newton County, Texas Social Security numbersDriver’s license numbersHealth and medical information+2 1.3KTexas residents
- City of Port Hueneme 3Indiana residents
- Florida Reliability Coordinating Council 78people
- City of Iowa City –not reported
- City of Suffolk, Virginia Social Security numbersFinancial account and card detailsNames 157.7Kpeople
- Indiana Alcohol and Tobacco Commission 1people
- Town of Apex 22.6Kpeople
- Oklahoma Tax Commission Social Security numbersNames 4.2KTexas residents
- City of Washington Court House 5Kpeople
- DeKalb County, Indiana 1Kpeople
- Children’s Council of San Francisco –not reported
- City of Carthage, Texas Social Security numbersDriver’s license numbersHealth insurance details+4 8.5Kpeople
- City of Mission Social Security numbersDriver’s license numbersGovernment ID numbers+6 12.4Kpeople
- Managed Care Advisors-Sedgwick Government Solutions 290people
- City of Peabody MA 50Kpeople
- The City of San Jose, California –not reported
- Legal Aid Service of Broward County Social Security numbers 1.9Kpeople
- City of Clarksville 179people
- City of Marina, California –not reported
- Title Guaranty Company of Lewis County –not reported
- Sonoma County Department of Emergency Management –not reported
- Box Elder County 81.7Kpeople
- City of Houston Social Security numbersDates of birthNames 7.5KTexas residents
- City of Puyallup (CodeRed) 2.6KWashington residents
- Housing Authority of the City of Los Angeles –not reported
- Housing Authority of the City of Vancouver 736Washington residents
- Kaufman County, Texas Social Security numbersDriver’s license numbersGovernment ID numbers+6 130KTexas residents
- The Superior Court of California, County of San Joaquin –not reported
- City of Pittsburg, California –not reported
- County of Stanislaus –not reported
- State of California, Department of Industrial Relations –not reported
- County of Orange Office of Care Coordination –not reported
- Skagit County, WA (Trusted Plans Service Corporation) 1.1KWashington residents
- State of California, Department of Child Support Services –not reported
- Oregon Department of Environmental Quality 250Oregon residents
- Clark County, WA 76.3KOregon residents
- City of San Clemente –not reported
- The City of Columbia City 771Oregon residents
- The City of Long Beach, CA 470.1KOregon residents
- Chicano Federation of San Diego County –not reported
- City of Cedar Falls, Iowa –not reported
- City of Roseburg 15.7KOregon residents
- City of Hayward –not reported
- The City of Richland, Washington 1.7KWashington residents
- California Department of Social Services –not reported
- Boys and Girls Clubs of Whatcom County 870Washington residents
- City of St. Helena –not reported
- City of Victorville, California –not reported
- State of Kansas Office of Judicial Administration –not reported
- City of Pensacola, Florida –not reported
- City of El Cerrito, California –not reported
- City of Hope 827.1KOregon residents
- The Spanish Speaking Unity Council of Alameda County –not reported
- California Department of Food and Agriculture –not reported
- Employment Secruity Department of Washington State 519Washington residents
- Washington State Department of Licensing 997Washington residents
- Housing Authority of the County of San Bernardino –not reported
- Sierra County –not reported
- State of Maine 1.3MOregon residents
- The City of Lakewood 24.2KWashington residents
- City of Oakland –not reported
- County of Los Angeles Department of Public Social Services –not reported
- Community Action Partnership of Madera County –not reported
- County of Santa Clara, California –not reported
- Teachers' Retirement System of the City of New York –not reported
- Oregon Department of Transportation 3.5MOregon residents
- City of Woodland 2.6KWashington residents
- County of Contra Costa, California –not reported
- Department of Toxic Substances Control –not reported
- The City of Modesto –not reported
- CA Department of Social Services –not reported
- City of Chula Vista –not reported
How the sector is decided
A sector is read from the organisation’s own name (“Mercy Hospital”, “First National Bank”, “Lincoln School District”) and from the register it filed with (every notice on the US health department’s breach portal is a health organisation’s). A name that says nothing has no sector, and a name can mislead now and then, so these figures are a floor. Found one in the wrong place? Tell us.
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From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Official registers · Corrections and changes · Accuracy audit · For journalists · Found a mistake? Tell us and we correct it.