Privacy Unpacked

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

  1. AdaptHealth, LLC 4,115,802 patients United States
  2. Baylor Genetics 2,810,878 patients United States
  3. RingCentral 1,596,490 accounts United States
  4. Lennar Mortgage, LLC 348,416 people United States
  5. Boston Healthcare for the Homeless Program 201,260 patients United States
  6. Oakdale Ear Nose & Throat PA d/b/a Minnesota ENT 99,714 patients United States

Every breach this week, by country

United States 42

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.

Every week

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.