Incident tracker

Recent cyber attacks and data breaches

This view includes companies named on ransomware leak sites. Those are the gangs’ claims, not verified breaches.

DisclosedCompanyWhat happenedTypeRecordsSource
2026-08-21ASOS US Sales LLCASOS US Sales LLC: a data breach

ASOS US Sales LLC notified the Washington State Attorney General on August 21, 2026 of a data breach that occurred on July 28, 2026, affecting 1,929 Washington residents. Information involved: Name, Financial & Banking Information, Full Date of Birth, Email Address and Password/Security Question Answers.

Data breach
Not disclosedCalifornia Attorney General

+1 more

2026-08-21Premier Medical Group of the Hudson Valley P.C.

Healthcare

Premier Medical Group of the Hudson Valley P.C.: a health data breach

Premier Medical Group of the Hudson Valley P.C., a healthcare provider in NY, reported a breach of health information affecting 282,075 people to the US Department of Health and Human Services on August 21, 2026. HHS records the breach type as hacking/it incident, involving network server.

Data breach
282,075HHS Office for Civil Rights
2026-08-21North Dakota Department of Health and Human Services, Developmental Disabilities Section

Healthcare

North Dakota Department of Health and Human Services, Developmental Disabilities Section: a health data breach

North Dakota Department of Health and Human Services, Developmental Disabilities Section, a healthcare provider in ND, reported a breach of health information affecting 1,750 people to the US Department of Health and Human Services on August 21, 2026. HHS records the breach type as hacking/it incident, involving email.

Data breach
1,750HHS Office for Civil Rights
2026-08-21Allergic Disease Associates, P.C. dba The Asthma Center

Healthcare

Allergic Disease Associates, P.C. dba The Asthma Center: a health data breach

Allergic Disease Associates, P.C. dba The Asthma Center, a healthcare provider in PA, reported a breach of health information affecting 5,321 people to the US Department of Health and Human Services on August 21, 2026. HHS records the breach type as hacking/it incident, involving network server.

Data breach
5,321HHS Office for Civil Rights
2026-08-21Baraga County Memorial Hospital

Healthcare

Baraga County Memorial Hospital: a health data breach

Baraga County Memorial Hospital, a healthcare provider in MI, reported a breach of health information affecting 501 people to the US Department of Health and Human Services on August 21, 2026. HHS records the breach type as hacking/it incident, involving network server.

Data breach
501HHS Office for Civil Rights
2026-08-21Hawaii Dental Group, Inc DBA Hawaii Family Dental

Healthcare

Hawaii Dental Group, Inc DBA Hawaii Family Dental: a health data breach

Hawaii Dental Group, Inc DBA Hawaii Family Dental, a healthcare provider in HI, reported a breach of health information affecting 45,853 people to the US Department of Health and Human Services on August 21, 2026. HHS records the breach type as hacking/it incident, involving email.

Data breach
45,853HHS Office for Civil Rights
2026-08-20Nebraska Orthopaedic Center, P.C.Nebraska Orthopaedic Center, P.C.: a data breach

Nebraska Orthopaedic Center, P.C. notified the California Attorney General of a data breach on August 20, 2026, with the breach dated December 2, 2025. The notice covers more than 500 California residents; California does not publish the exact number.

Data breach
Not disclosedCalifornia Attorney General
2026-08-20Apollo Management Holdings, L.P.Apollo Management Holdings, L.P.: a data breach

Apollo Management Holdings, L.P. notified the California Attorney General of a data breach on August 20, 2026, with the breach dated July 6, 2026. The notice covers more than 500 California residents; California does not publish the exact number.

Data breach
Not disclosedCalifornia Attorney General
2026-08-20Northern Inyo Healthcare District d/b/a Northern Inyo HospitalNorthern Inyo Healthcare District d/b/a Northern Inyo Hospital: a data breach

Northern Inyo Healthcare District d/b/a Northern Inyo Hospital notified the California Attorney General of a data breach on August 20, 2026, with the breach dated December 2, 2025. The notice covers more than 500 California residents; California does not publish the exact number.

Data breach
Not disclosedCalifornia Attorney General
2026-08-20Southern Illinois UniversitySouthern Illinois University: a data breach

Southern Illinois University notified the California Attorney General of a data breach on August 20, 2026, with the breach dated September 29, 2025. The notice covers more than 500 California residents; California does not publish the exact number.

Data breach
Not disclosedCalifornia Attorney General

About this tracker

442
Incidents
320
Ransomware gang claims
762
Last 30 days
425
Companies tracked
2,742,606,708
Records disclosed