Every public data breach

Every public data breach, newest first

25,948 so far, +235 this week. 24,517 confirmed by an official notice, a filing or the organization, across 23,681 organizations. Scanned daily.

Breaches disclosed per month

Breaches disclosed per month
250500
Nov20252026

Latest disclosed

All breaches
OrganizationAffected
Angel OneOct 7todayUnverified6.8Macct
Harman FitnessOct 6yesterday4,714
FlowcoOct 6yesterday2,477
8.8 Million Impacted by8.8 Million Impacted by Data Breach at Denmark’s Central Person RegisterOct 6yesterdayHackingUnverifiedUnknown
Arthur J. JerryOct 6yesterdayUnknown
ASOSASOS confirms data breach after “HACKED” in-app notificationsOct 6yesterdayHackingUnverifiedUnknown
Cleburne Independent School DistrictOct 6yesterdayUnknown
Edgewood ISDOct 6yesterdayUnknown
Healthcare HighwaysOct 6yesterdayUnknown
NikkeiNikkei discloses breaches of employees’ Microsoft, Google email accountsOct 6yesterdayPhishingUnverifiedUnknown
Denmark population registryDenmark population registry data breach affects 8.8 million peopleOct 52 days agoUnverified8.8M
Access Residential ManagementOct 52 days agoUnknown
Advantest AmericaOct 52 days agoUnknown
CernerOct 52 days agoUnknown
Covercraft IndustriesOct 52 days agoUnknown
Daiwa SecuritiesDaiwa Securities says info on 110,000 clients may have been leaked in vendor incidentOct 52 days agoVendor breachUnverifiedUnknown
North Slope Borough School DistrictOct 52 days agoUnknown
South KoreaSouth Korea probes bank breaches amid suspected AI-powered attacksOct 52 days agoHackingUnverifiedUnknown
Hudson River Museum of WestchesterOct 43 days agoUnknown
Danish university DTUDanish university DTU breach exposes data of up to 200,000 peopleOct 34 days agoHackingUnverified200K
MetamaskMetamask discloses security incident affecting its infrastructureOct 34 days agoUnverifiedUnknown
Over 543,000 valid credentialsOver 543,000 valid credentials exposed in public GitHub repositoriesOct 34 days agoExposed dataUnverifiedUnknown
Sheppard, Mullin, Richter & HamptonOct 25 days ago204K
Pro HoldingsOct 25 days ago11K
Fragomen, Del Rey, Bernsen & LoewyOct 25 days ago1,753
Frontline EducationFrontline Education breach exposes school district employee dataOct 25 days agoVendor breachUnverifiedUnknown
Goldston OilOct 25 days agoUnknown
Heuer PublishingOct 25 days agoUnknown
Innovative AlternativesOct 25 days agoUnknown
Mississippi mayorMississippi mayor says ransomware incident led city to shut down systemsOct 25 days agoRansomwareUnverifiedUnknown
Walnut Creek Special Utility DistrictOct 25 days agoUnknown
Warlock ransomwareWarlock ransomware breach SharePoint in water, telecom operator attacksOct 25 days agoRansomwareUnverifiedUnknown
Lincoln Property Company CommercialOct 16 days ago19K
Aldrich ServicesOct 16 days agoUnknown
Live Nation EntertainmentOct 16 days agoUnknown
Marana Health CenterOct 16 days agoUnknown
Virgo GemsOct 16 days agoUnknown
DriveWealthSep 307 days ago30M
MedelaSep 307 days agoExtortionUnverified424Kacct
World AcceptanceSep 307 days ago232K
Midvale Indemnity and American Family Connect InsuranceSep 307 days ago53K
Midvale IndemnitySep 307 days ago38K
Nishiyamato AcademySep 307 days ago5,507
McKenzie Creative BrandsSep 307 days ago4,399
Woodlands Arts CouncilSep 307 days ago2,923
MEBS Global ReachSep 307 days ago2,068
ViewSonicSep 307 days ago540
Deer ManagementSep 307 days ago431
American Motorcyclist AssociationSep 307 days ago200
American Family Connect InsuranceSep 307 days agoUnknown
ProCampsSep 307 days agoUnknown
Woodlands Art CouncilSep 307 days agoUnknown
Poppins PayrollSep 298 days ago247K
City of McMinnvilleSep 298 days ago123K
Pavillon InternationalSep 298 days ago8,813
Lamb WestonSep 298 days ago7,175
Borger Independent School DistrictSep 298 days ago4,261
Association of the Bar of the City of New YorkSep 298 days ago3,847
Chicago Psychoanalytic InstituteSep 298 days ago57
Challenge Financial ServicesSep 298 days agoUnknown
Lamb Weston HoldingsSep 298 days agoUnknown
Petrovits, Patrick, SmithSep 298 days agoUnknown
KLA LaboratoriesSep 289 days ago1,788
Blair C Diaz CPASep 289 days ago1,465
Wooddesign RV InteriorsSep 289 days ago763
Smith DollarSep 289 days ago109
Reminger Co LPASep 289 days ago22
Indico Data CenterSep 289 days agoUnknown
OneMain FinancialSep 289 days agoUnknown
PeoplesBankSep 289 days agoUnknown
San Bernardino CountySep 289 days agoUnknown
PentagonPentagon data breach of military personnel raises national security concernsSep 2611 days agoUnverifiedUnknown
PolandPoland reports a second medical data cyberattack in recent weeksSep 2611 days agoHackingUnverifiedUnknown
Saber HealthcareSep 2512 days ago427K
MedImpact Healthcare SystemsSep 2512 days ago327K
Waterford Hotel Group LLC & LMD HoldingSep 2512 days ago22K
Missoula Community Health ServicesSep 2512 days ago19K
Moorman Harting Financial ServicesSep 2512 days ago18K
Bolt Web SolutionsSep 2512 days ago15K
Gallagher Transport InternationalSep 2512 days ago13K
Bee BervgallSep 2512 days ago7,365
Electric Research and Manufacturing CooperativeSep 2512 days ago6,490
Magni GroupSep 2512 days ago3,515
Structural and Steel ProductsSep 2512 days ago1,143
Harbor Fish MarketSep 2512 days ago747
Republic National DistributingSep 2512 days ago565
TIAASep 2512 days ago177
Encompass Credit UnionSep 2512 days ago51
Ayres Carr & SullivanSep 2512 days ago8
Bee, BergvallSep 2512 days agoUnknown

Largest in the last 12 months

By size

Questions

What counts as a breach here?

Any publicly disclosed security breach or data exposure: hacks and intrusions, ransomware with data theft, leaked or exposed databases, supply-chain compromises, vendor breaches, AI and model-related data incidents, insider incidents and credential stuffing that an organization disclosed.

Where does the data come from?

Official breach notices filed with state attorneys general (California, Washington, Delaware, Oregon, Texas, Vermont, Indiana and the Maine archive), the HHS Office for Civil Rights breach portal and its archive, SEC 8-K Item 1.05 and Item 8.01 cybersecurity filings, UK ICO enforcement, the Have I Been Pwned breach list, regulator decisions, the organizations own statements and reputable security news. Every breach links to its sources.

What does confirmed mean?

A breach is confirmed when an official notice, a regulator, an SEC filing or the organization itself confirms it. Breaches known only from news reports or leak data are marked unverified until then. Settled means a settlement or fine has concluded.

Are the record counts exact?

They are the figures the organization or a regulator reported, and they often change: a later, larger count replaces the earlier one and the history keeps both. Counts from Have I Been Pwned are accounts found in the leaked data, labelled as such. State portals report only their own residents, so those are shown on the breach page, not as the total.

How often is it updated?

A scan runs every day at 05:10 UTC over the notice portals, HHS, SEC EDGAR, Have I Been Pwned and security news. Every Wednesday a deeper pass re-reads every portal in full, links breach lawsuits from lawsuits.fru.dev, looks for new sources and saves weekly counts. Nothing is overwritten: changes are kept on the Changes page.