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.

5,336
Disclosures in the tracker, all years
2,049
Of those, indexed in 2026
104
Added in October
24
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 24 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.

74 incidents from 11 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. Singapore22 Oct 2026GenesysThe source does not say how they got in.The Hacker News
Medium15 Sep 2026
CenterPoint Energy
Sector not stated · Records not stated
CenterPoint Energy disclosed a breach compromising some customers' personal information after an attacker leaked data allegedly stolen from the utility company.
15 Sep 2026
High15 Sep 2026
Woodfords Family Services
Healthcare · Records not stated
2024 ransomware attack affecting patients and families
15 Sep 2026
Critical15 Sep 2026
T-Mobile
Technology · 64,000,000 records
Over 64 million records leaked online by hackers
15 Sep 2026
Critical15 Sep 2026
Free Mobile and Free
Technology · Records not stated
Major data theft in France, resulted in €49 million fine from CNIL
15 Sep 2026
High15 Sep 2026
DocketWise
Legal · 143,000 records
Data breach impacted 143,000 individuals
15 Sep 2026
High15 Sep 2026
Estée Lauder
Retail · Records not stated
Data breach from Oracle EBS zero-day hack disclosed
15 Sep 2026
Critical15 Sep 2026
ApolloMD
Healthcare · 626,000 records
Data breach impacted 626,000 individuals
15 Sep 2026
Critical15 Sep 2026
Blue Shield of California
Healthcare · 4,700,000 records
Data breach impacted 4.7 million people
15 Sep 2026
Critical15 Sep 2026
Columbia University
Education · 860,000 records
Data breach impacted 860,000 individuals
15 Sep 2026
High15 Sep 2026
7-Eleven
Retail · 185,000 records
Data breach affected over 185,000 people's personal and payment information
15 Sep 2026
High15 Sep 2026
Covenant Health
Healthcare · 480,000 records
Data breach impacted nearly 480,000 patients' medical and personal information
15 Sep 2026
High15 Sep 2026
University of Hawaiʻi Cancer Center
Healthcare · Records not stated
Data leak following ransomware attack exposed patient medical records
15 Sep 2026
Critical15 Sep 2026
700Credit
Finance · 10,000,000 records
Data breach affecting approximately 10 million people in credit reporting data theft
15 Sep 2026
Critical15 Sep 2026
Prosper
Finance · 10,000,000 records
Data breach affecting approximately 10 million people's financial and personal information
15 Sep 2026
High15 Sep 2026
Krispy Kreme
Retail · 160,000 records
Over 160,000 people had data stolen during cyber attack in 2024
15 Sep 2026
High15 Sep 2026
Kaplan
Education · Records not stated
Education company reported data breach impacting student and staff records
15 Sep 2026
Critical15 Sep 2026
Yale New Haven Health
Healthcare · 5,500,000 records
Data breach affected 5.5 million patients' medical and personal information
15 Sep 2026
Critical15 Sep 2026
Unlimited Technology Systems
Technology · 3,800,000 records
Data breach impacted 3.8 million people's personal information
15 Sep 2026
High15 Sep 2026
PayPal
Finance · Records not stated
Data breach exposed user personal information for 6 months
15 Sep 2026
High15 Sep 2026
Cox Enterprises
Technology · Records not stated
Data breach via Oracle E-Business Suite exposed employee and customer data
15 Sep 2026
High15 Sep 2026
Sax
Legal · 220,000 records
Top US accounting firm disclosed 2024 data breach impacting 220,000 individuals
15 Sep 2026
High15 Sep 2026
Cell C
Technology · Records not stated
Data breach following cyberattack at South African telecom provider
15 Sep 2026
High15 Sep 2026
TransUnion
Finance · 37,000 records
2019 breach exposed credit and personal data of 37,000 people
15 Sep 2026
Critical15 Sep 2026
Optus
Technology · Records not stated
2022 cyber breach with privacy regulator lawsuit filed for privacy law violations
15 Sep 2026
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