Weekly briefing No. 41 published 4 Oct 2026
Disclosure tracker › Disclosures in 2025
Intelligence · Disclosure tracker

Disclosures in 2025

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.

5,276
Disclosures in the tracker, all years
1,990
Of those, indexed in 2026
39
Added in October
9
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 15 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.

980 results · Disclosures in 2025. Clear filters

Critical1 Oct 2025
Blue Cross Blue Shield
Healthcare · Records not stated
Massive data breach of healthcare provider; company allegedly delayed reporting
1 Oct 2025
Critical1 Oct 2025
Canadian Tire
Retail · 38,000,000 records
E-commerce database breach exposed personal data and encrypted passwords of 38 million accounts
1 Oct 2025
Critical1 Oct 2025
Capita
Sector not stated · 6,600,000 records
6.6 million records exposed due to 58-hour delay in breach response, resulting in £14M fine
1 Oct 2025
High1 Oct 2025
Salesforce
Technology · Records not stated
Attackers used social engineering and OAuth exploits to breach customer data
1 Oct 2025
High1 Oct 2025
Capita
Sector not stated · Records not stated
Customer data breach resulting in ICO fine of £14 million for GDPR infringements
1 Oct 2025
Critical1 Oct 2025
Canadian Tire
Retail · 38,000,000 records
E-commerce database breach exposed names, addresses, emails, birth years of 38 million customer accounts
1 Oct 2025
Critical1 Oct 2025
PNC Financial Services Group
Finance · 740,000 records
Data breach exposed 740,000 records of personally identifiable information; class action filed.
1 Oct 2025
Critical1 Oct 2025
Unlimited Technology Systems
Healthcare · Records not stated
Revenue cycle management provider breach exposed 3.8 million healthcare patients' information including personal and medical data.
1 Oct 2025
High1 Oct 2025
Motility
Technology · Records not stated
Ransomware attack where hackers encrypted servers supporting car dealership software operations
1 Oct 2025
High1 Oct 2025
Salesforce
Technology · Records not stated
Attackers used social engineering and OAuth exploits to breach systems and access customer data
1 Oct 2025
High1 Oct 2025
Mango
Retail · Records not stated
Spanish fast-fashion retailer; limited customer information exposed via external marketing provider breach
1 Oct 2025
Critical1 Oct 2025
Canadian Tire
Retail · 38,000,000 records
38 million customer accounts exposed including names, addresses, emails, birth years, encrypted passwords
1 Oct 2025
Critical1 Oct 2025
PNC Financial Services Group
Finance · 740,000 records
Data breach exposing 740,000 customer records with inadequate security measures
1 Oct 2025
Critical1 Oct 2025
Unlimited Technology Systems
Healthcare · Records not stated
Revenue cycle management provider exposed 3.8 million healthcare patients' information
1 Oct 2025
Critical1 Oct 2025
Multiple (Email Password Leak)
Technology · 183,000,000 records
183 million email passwords exposed including tens of millions Gmail accounts
1 Oct 2025
High1 Oct 2025
U.S. Government
Government · 53,070 records
Password exposure revealed 53,070 passwords associated with U.S. government email domains exposed since 2024
1 Oct 2025
Critical1 Oct 2025
Multiple (Email Passwords)
Technology · 183,000,000 records
183 million email passwords exposed, including tens of millions Gmail accounts
1 Oct 2025
Critical1 Oct 2025
Unknown (Email providers)
Technology · 183,000,000 records
183 million email passwords exposed, including tens of millions Gmail accounts
1 Oct 2025
Critical1 Oct 2025
Conduent Business Services, LLC
Sector not stated · 10,515,849 records
Data breach compromised sensitive information of 10,515,849 individuals; millions notified a year later
1 Oct 2025
Critical1 Oct 2025
U.S. Government Civil Servants
Government · Records not stated
Thousands of civil servants' passwords exposed since early 2024, including White House credentials
1 Oct 2025
Critical1 Oct 2025
Multiple (Email Providers)
Technology · 183,000,000 records
183 million email passwords exposed including tens of millions Gmail accounts
1 Oct 2025
Critical1 Oct 2025
Email Password Leak (183M)
Sector not stated · 183,000,000 records
183 million email passwords exposed including tens of millions of Gmail accounts
1 Oct 2025
Critical1 Oct 2025
Organisation not named
Finance · 740,000 records
The disclosure as indexed does not name the organisation.
Class action lawsuit alleges failure to secure 740,000 records containing personally identifiable information
1 Oct 2025
Critical1 Oct 2025
UK Government Civil Service
Government · Records not stated
Thousands of civil servants' passwords exposed since early 2024, including White House-linked credentials
1 Oct 2025
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