Privacy Unpacked

Weekly breach brief

Data breaches in the week of 16–22 March 2026

46 data breaches on the tracker, 46 confirmed by the organisation or a regulator.

Breaches
46
Notices in CA and WA
16
Ransomware claims
168
Largest
1.4M

The largest

  1. Kaplan North America, LLC 1,403,060 people United States
  2. Aura 903,080 accounts
  3. Old National Bank (see 2025 Report for Marquis Software Solutions) 672,075 people United States
  4. Chapter 13 Trustee Office of Rod Danielson 63,857 people United States
  5. Gearhiser, Peters, Elliot, & Cannon PLLC 26,951 people United States
  6. Brandt Equities LP 23,922 people United States

Every breach this week, by country

United States 45

Country being checked 1

  • Aura 18 March 2026 · 903,080 accounts

Ransomware claims

Gangs named 168 organisations on their leak sites this week, against 166 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.