Weekly briefing No. 41 published 4 Oct 2026

Intelligence · Disclosure tracker

Every public disclosure, dated and sourced.

Public breach disclosures from regulators, court filings, company notices and news reporting, each recorded with its date and a link to the original. Updated daily.

5,314

Disclosures in the tracker, all years

2,028

Of those, indexed in 2026

76

Added in October

21

Added in the last 7 days

7

Sectors covered

Source: LeakTrace disclosure tracker, 21 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.

Worldwide · How they got in

Incidents worldwide, by country.

72 incidents from 9 countries in the last 90 days, each from a public source and reviewed before it is shown. Where the source says how the attackers got in, the row says so.

France20 Oct 2026US tax preparation businessesThe source does not say how they got in.The Record
France13 Oct 2026Supermarkets across EuropeHow they got in: a known flaw in software the victim ran.SecurityWeek

High14 May 2020

780K donor records exposed

Education · Records not stated

780K donor records exposed

14 May 2020

High14 May 2020

440K records exposed

Education · 440,000 records

440K records exposed

14 May 2020

High14 May 2020

780K donor records exposed

Education · Records not stated

780K donor records exposed

14 May 2020

High14 May 2020

440K records exposed

Education · 440,000 records

440K records exposed

14 May 2020

High14 May 2020

780K donor records exposed

Education · Records not stated

780K donor records exposed

14 May 2020

High14 May 2020

440K records exposed

Education · 440,000 records

440K records exposed

14 May 2020

High14 May 2020

780K donor records exposed

Education · Records not stated

780K donor records exposed

14 May 2020

High14 May 2020

440K records exposed

Education · 440,000 records

440K records exposed

14 May 2020

High14 May 2020

780K donor records exposed

Education · Records not stated

780K donor records exposed

14 May 2020

High14 May 2020

440K records exposed

Education · 440,000 records

440K records exposed

14 May 2020

High14 May 2020

780K donor records exposed

Education · Records not stated

780K donor records exposed

14 May 2020

Medium14 May 2020

DaVita Kidney Care

Healthcare · 44,000 records

44K patient records exposed in Blackbaud breach

14 May 2020

High14 May 2020

Wake Forest University (Blackbaud)

Education · 290,000 records

290K records exposed

14 May 2020

High14 May 2020

Boston University (Blackbaud)

Education · 320,000 records

320K records exposed

14 May 2020

High14 May 2020

University of Texas (Blackbaud)

Education · 440,000 records

440K records exposed

14 May 2020

High14 May 2020

University of Pittsburgh (Blackbaud)

Education · 680,000 records

680K records exposed

14 May 2020

High14 May 2020

Indiana University (Blackbaud)

Education · Records not stated

380K donor records exposed

14 May 2020

High14 May 2020

Cornell University (Blackbaud)

Education · Records not stated

420K alumni records exposed

14 May 2020

High14 May 2020

Ohio State University (Blackbaud)

Education · Records not stated

550K donor records exposed

14 May 2020

Critical14 May 2020

University of Virginia (Blackbaud)

Education · Records not stated

1.1M donor and alumni records exposed

14 May 2020

Critical14 May 2020

Blackbaud (higher ed)

Education · Records not stated

12M+ donor and alumni records exposed across 200+ universities

14 May 2020

High14 May 2020

Elkhart Emergency Physicians

Healthcare · 550,000 records

550K patient records exposed in Blackbaud breach

14 May 2020

High14 May 2020

NorthShore University HealthSystem (Blackbaud)

Healthcare · 348,000 records

348K patient records exposed

14 May 2020

High14 May 2020

SCL Health (Blackbaud)

Healthcare · 343,000 records

343K patient records exposed in Blackbaud vendor breach

14 May 2020

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