Privacy Unpacked

Weekly breach brief

Data breaches in the week of 1–7 June 2026

57 data breaches on the tracker, 57 confirmed by the organisation or a regulator.

Breaches
57
Notices in CA and WA
15
Ransomware claims
127
Largest
27.4M

The largest

  1. DentaQuest LLC 27,400,000 people United States
  2. Xsolis Inc 2,523,302 people United States
  3. BCD Travel 396,313 accounts
  4. Edmunds 177,860 accounts
  5. Lansing Community College 174,307 people United States
  6. City of Middletown 123,791 people United States

Every breach this week, by country

United States 54

Country being checked 3

Ransomware claims

Gangs named 127 organisations on their leak sites this week, against 169 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 · Official registers · Corrections and changes · Found a mistake? Tell us and we correct it.