Weekly breach brief
Data breaches in the week of 10–16 August 2026
42 data breaches on the tracker, 42 confirmed by the organisation or a regulator.
- Breaches
- 42
- Notices in CA and WA
- 21
- Ransomware claims
- 272
- Largest
- 4.1M
The largest
- AdaptHealth, LLC 4,115,802 patients United States
- Baylor Genetics 2,810,878 patients United States
- RingCentral 1,596,490 accounts United States
- Lennar Mortgage, LLC 348,416 people United States
- Boston Healthcare for the Homeless Program 201,260 patients United States
- Oakdale Ear Nose & Throat PA d/b/a Minnesota ENT 99,714 patients United States
Every breach this week, by country
United States 42
- AdaptHealth, LLC 14 August 2026 · 4,115,802 patients
- Baylor Genetics 14 August 2026 · 2,810,878 patients
- RingCentral 13 August 2026 · 1,596,490 accounts
- Heights Finance Holdings Co. 14 August 2026 · 734,828 Texas residents
- Lennar Mortgage, LLC 14 August 2026 · 348,416 people
- Lone Star Community Health Center 14 August 2026 · 250,130 Texas residents
- Boston Healthcare for the Homeless Program 10 August 2026 · 201,260 patients
- Oakdale Ear Nose & Throat PA d/b/a Minnesota ENT 12 August 2026 · 99,714 patients
- Preferred Parking Service LLC 14 August 2026 · 72,912 people
- Quantum Health, Inc. 14 August 2026 · 68,451 Texas residents
- Paylogix, LLC 14 August 2026 · 41,739 patients
- Atrium Centers Inc 14 August 2026 · 39,334 people
- 5 Star Life Insurance Company 14 August 2026 · 20,625 people
- USA DeBusk LLC 14 August 2026 · 10,581 Texas residents
- Mountain Rheumatology Professional, LLC 14 August 2026 · 5,378 patients
- Gardiner Family Chiropractic, PC 14 August 2026 · 5,000 patients
- BestCare Treatment Services, Inc. 13 August 2026 · 4,216 patients
- PSI Premier Specialties, Inc. d/b/a Medical Express PSI 16 August 2026 · 4,100 patients
- Universal Plant Services, LLC 14 August 2026 · 3,492 Texas residents
- Kovack Financial, LLC 10 August 2026 · 3,301 Texas residents
- Professional Directional Enterprises, Inc. 10 August 2026 · 2,945 Texas residents
- The Law Office of Douglas D. Ketterman, P.L.L.C. 14 August 2026 · 2,700 Texas residents
- Financial Administrative Support Services 14 August 2026 · 2,481 Texas residents
- Merced Union High School District 14 August 2026 · 2,449 people
- Integrative Emergency Services, LLC 14 August 2026 · 2,009 patients
- Tange, Mann & Garza, P.C. 14 August 2026 · 1,321 Texas residents
- Gila Health Resources, LLC 10 August 2026 · 1,157 Texas residents
- Westchester Institute for Human Development, Inc. 10 August 2026 · 938 patients
- Cresset Capital Management 10 August 2026 · 885 Texas residents
- Community Health Care, Inc. 11 August 2026 · 808 patients
- Longview ER Operations, LLC 11 August 2026 · 501 patients
- Well Child, Inc. 14 August 2026 · 500 patients
- Limestone Medical Center 10 August 2026 · 435 Texas residents
- The Methodist Hospital d/b/a Houston Methodist Hospital 14 August 2026 · 403 Texas residents
- Terry J. Dubrow, MD, A Medical Corporation 14 August 2026 · 317 Texas residents
- Bahrie Law, PLLC 14 August 2026 · 301 Texas residents
- North Florida Women's Care 14 August 2026 · 253 Texas residents
- Alta Park Capital LP 14 August 2026 · 241 people
- Woodard, Emhardt, Henry, Reeves, & Wagner LLC 14 August 2026 · 76 people
- QuestionPro Inc 15 August 2026 · 44 people
- De Colores Child Development Center Weber, LLC 10 August 2026 · 2 Texas residents
- Chelan County, WA 11 August 2026
Ransomware claims
Gangs named 272 organisations on their leak sites this week, against 336 the week before. A claim is the gang’s word, not a confirmed breach.
- Cl0p 43 claims
- Qilin 36 claims
- The Gentlemen 32 claims
- Direwolf 17 claims
- Majinahanashi 15 claims
- Storm 10 claims
Every week
- 26 Oct – 1 Nov 2026 67 data breaches so far
- 19–25 October 2026 80 data breaches
- 12–18 October 2026 56 data breaches
- 5–11 October 2026 48 data breaches
- 28 Sept – 4 Oct 2026 68 data breaches
- 21–27 September 2026 62 data breaches
- 14–20 September 2026 57 data breaches
- 7–13 September 2026 33 data breaches
- 31 Aug – 6 Sept 2026 49 data breaches
- 24–30 August 2026 52 data breaches
- 17–23 August 2026 53 data breaches
- 10–16 August 2026 42 data breaches
- 3–9 August 2026 22 data breaches
- 27 Jul – 2 Aug 2026 26 data breaches
- 20–26 July 2026 7 data breaches
Follow the brief: one entry a week (Atom). The 2026 report has the year so far.
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 · Found a mistake? Tell us and we correct it.