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.

5,302
Disclosures in the tracker, all years
2,017
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. China14 Oct 2026Hospitals and healthcare organizationsHow they got in: email made to look like it came from a trusted sender.SecurityWeek
Critical2 Aug 2026
Guru Baran
Sector not stated · Records not stated
Guru Baran reports: Brinks Home, one of North America’s largest residential security providers, has confirmed that hackers breached its IT systems after the notorious ShinyHunters extortion group claimed responsibility…
2 Aug 2026
Critical2 Aug 2026
DHS Information Network
Government · Records not stated
Active intrusion into federal information sharing network
2 Aug 2026
Critical2 Aug 2026
IDMerit
Technology · Records not stated
Data breach exposed over 203 million U.S. records containing personal identity verification details
2 Aug 2026
Medium2 Aug 2026
Centre for Newcomers
Sector not stated · Records not stated
380GB stolen in ransomware attack
2 Aug 2026
Critical2 Aug 2026
Medical billing firm breach
Healthcare · 1,260,000 records
Medical billing firm breach exposed sensitive data of 1.26 million people in 2025
2 Aug 2026
High2 Aug 2026
Partnered Health (Australia)
Healthcare · Records not stated
Personal information and medical details from 21 clinics stolen in cyber-attack
2 Aug 2026
Critical2 Aug 2026
Medical Billing Company
Healthcare · 1,300,000 records
2025 ransomware attack exposed protected health data on 1.3 million people to dark web
2 Aug 2026
High2 Aug 2026
Amgen
Healthcare · Records not stated
Cloud data breach exposed patient health information and proprietary corporate data.
2 Aug 2026
High2 Aug 2026
KT Corp
Technology · Records not stated
16,647 subscribers affected; rogue femtocell breach exposed personal data and stole SMS payment information
2 Aug 2026
High2 Aug 2026
Years-long data breach of residents' private health-related information
Government · Records not stated
Years-long data breach of residents' private health-related information
2 Aug 2026
Critical2 Aug 2026
1.2M individuals' personal data exposed in ransomware attack
Healthcare · 1,200,000 records
1.2M individuals' personal data exposed in ransomware attack
2 Aug 2026
High2 Aug 2026
Law firm (NJ healthcare)
Legal · 13,000 records
Nearly 13K patient records exposed in cyberattack on law firm representing NJ hospitals
2 Aug 2026
High2 Aug 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Thousands of NHS patient records stolen during major ransomware attack disrupting healthcare
2 Aug 2026
Critical2 Aug 2026
US Government Civil Servants
Government · Records not stated
Thousands of civil servants' passwords exposed, including White House linked credentials
2 Aug 2026
High2 Aug 2026
Estée Lauder
Retail · Records not stated
10-month-old data breach from Oracle EBS exposed personal data of customers
2 Aug 2026
Critical2 Aug 2026
Revolut
Finance · 75,000,000 records
75 million records allegedly for sale including credit card and personal data
2 Aug 2026
Critical2 Aug 2026
Amgen
Healthcare · Records not stated
Cloud data breach exposed patient health records and proprietary corporate information
2 Aug 2026
High2 Aug 2026
Nintendo of America
Technology · Records not stated
Employee PII stolen via third-party breach
2 Aug 2026
Critical2 Aug 2026
Fairlife / Coca-Cola
Sector not stated · Records not stated
1TB data stolen in ransomware attack
2 Aug 2026
Critical2 Aug 2026
Healthcare billing firm network breach
Healthcare · 1,260,000 records
Healthcare billing firm network breach exposed sensitive data affecting 1.26 million people
2 Aug 2026
Critical2 Aug 2026
TriZetto (Healthcare Tech)
Healthcare · Records not stated
2024 breach affecting more than 3 million Americans' healthcare data
2 Aug 2026
Critical2 Aug 2026
Revolut
Finance · 75,000,000 records
Credit card data and private information of 75 million customers allegedly for sale by attackers
2 Aug 2026
Critical2 Aug 2026
PNC Financial Services Group
Finance · 740,000 records
Data breach exposing 740,000 records; failure to properly secure personally identifiable information
2 Aug 2026
High2 Aug 2026
Huntsville Hospital
Healthcare · Records not stated
Data breach compromises personal health information of hospital system patients
2 Aug 2026
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