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.

5,306
Disclosures in the tracker, all years
2,020
Of those, indexed in 2026
68
Added in October
18
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 20 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.

65 incidents from 12 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.

  1. Netherlands7 Oct 2026Jeppesen ForeFlightThe source does not say how they got in.Krebs on Security
High1 Aug 2026
Apollo Global Management
Finance · Records not stated
Data breach confirmed at private equity firm amid financial sector hacking wave
1 Aug 2026
Critical1 Aug 2026
McKesson
Healthcare · 284,000,000 records
Data breach confirmed with 284M records stolen including PII and PHI by ShinyHunters
1 Aug 2026
Critical1 Aug 2026
McKesson
Healthcare · Records not stated
Hackers claim millions of patient records stolen during data breach
1 Aug 2026
High1 Aug 2026
US Bank
Finance · Records not stated
LockBit ransomware breach with stolen data threatened for publication
1 Aug 2026
High1 Aug 2026
ATF
Government · Records not stated
Cybersecurity incident confirmed after Qilin ransomware group claimed attack on federal agency
1 Aug 2026
Critical1 Aug 2026
Amgen
Healthcare · Records not stated
Hackers accessed cloud environment stealing patient health data and intellectual property
1 Aug 2026
Critical1 Aug 2026
Aesto Health
Healthcare · 9,500,000 records
9.5M patient records exposed from healthcare technology company
1 Aug 2026
High1 Aug 2026
Apollo Global Management
Finance · Records not stated
Private equity firm confirms data breach amid hacking wave targeting financial giants
1 Aug 2026
High1 Aug 2026
AnMed
Healthcare · Records not stated
Healthcare system cyberattack caused facility closures and prolonged recovery with data breach impact
1 Aug 2026
High1 Aug 2026
ATF
Government · Records not stated
Cyber incident confirmed after Qilin ransomware group claimed attack on federal agency
1 Aug 2026
High1 Aug 2026
Trezor
Finance · 81,000 records
81,000 customers' data accessed in breach involving customer information exposure
1 Aug 2026
Critical1 Aug 2026
CareCloud
Healthcare · 3,750,000 records
3.75 million patient records exposed including medical data, SSNs, and banking information via AWS breach
1 Aug 2026
Critical1 Aug 2026
Aesto Health
Healthcare · 9,500,000 records
Healthcare technology company data breach affected 9.5 million patients
1 Aug 2026
High1 Aug 2026
Apollo Global Management
Finance · Records not stated
Private equity firm confirms data breach amid hacking wave targeting financial sector
1 Aug 2026
High1 Aug 2026
Coca-Cola/Fairlife
Retail · Records not stated
Data breach following ransomware attack on dairy subsidiary Fairlife
1 Aug 2026
High1 Aug 2026
Pokémon Center
Retail · Records not stated
Customer delivery data and personal information compromised in data breach
1 Aug 2026
Critical1 Aug 2026
Aesto Health
Healthcare · 9,500,000 records
Healthcare technology company breach exposed protected health information of 9.5 million patients
1 Aug 2026
Critical1 Aug 2026
Baylor Genetics
Healthcare · 2,800,000 records
Breach exposed medical conditions, Social Security numbers, and genetic data for 2.8 million people
1 Aug 2026
High1 Aug 2026
ATF
Government · Records not stated
Federal agency confirmed cyber incident after Qilin ransomware group claimed attack
1 Aug 2026
Critical1 Aug 2026
McKesson
Healthcare · Records not stated
Healthcare distribution giant suffered unauthorized access; patient data theft claimed by ShinyHunters
1 Aug 2026
Medium1 Aug 2026
Pokémon Center
Retail · Records not stated
Attackers obtained customer delivery data from breach
1 Aug 2026
High1 Aug 2026
AnMed Health
Healthcare · Records not stated
Ransomware attack on healthcare system
1 Aug 2026
Critical1 Aug 2026
National Public Data
Sector not stated · 272,000,000 records
Breach exposed 272 million SSNs and personal records
1 Aug 2026
Critical1 Aug 2026
Baylor Genetics
Healthcare · 2,800,000 records
Data breach exposed 2.8 million people's medical conditions and Social Security numbers
1 Aug 2026
Were you affected?