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.
5,341
Disclosures in the tracker, all years
2,054
Of those, indexed in 2026
111
Added in October
14
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 26 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
High1 Oct 2025
Mango Fashion Retailer
Retail · Records not stated
Spanish fast-fashion retailer's external marketing service provider suffered breach exposing limited customer information
1 Oct 2025
Critical1 Oct 2025
Canadian Tire
Retail · 38,000,000 records
October 2025 data breach affected 38 million customer accounts with personal and payment information
1 Oct 2025
Critical1 Oct 2025
Gmail/Google
Technology · 183,000,000 records
183 million email passwords exposed including millions of Gmail accounts through infostealer malware
1 Oct 2025
Critical1 Oct 2025
Toppan Next Tech
Technology · Records not stated
Breach affecting Singapore Police Force, DBS Bank, Bank of China, and Elections Commission
1 Oct 2025
Medium1 Oct 2025
Mango
Retail · Records not stated
External marketing service provider suffered breach exposing limited customer information
1 Oct 2025
Critical1 Oct 2025
Canadian Tire
Retail · 38,000,000 records
38 million customer accounts compromised in October 2025; contact details and encrypted passwords stolen
1 Oct 2025
Critical1 Oct 2025
Salesforce
Technology · 1,000,000,000 records
Hacking group claimed theft of 1 billion records from Salesforce customer databases
1 Oct 2025
Critical1 Oct 2025
Qantas
Sector not stated · 5,000,000 records
5 million customer records leaked after ransom deadline passed
1 Oct 2025
Critical1 Oct 2025
Blue Cross Blue Shield
Healthcare · Records not stated
Massive data breach affecting state's largest health insurance provider
1 Oct 2025
Critical1 Oct 2025
Canadian Tire
Retail · 38,000,000 records
38 million customer accounts breached; personal data, contact details, and encrypted passwords exposed in October 2025
1 Oct 2025
Critical1 Oct 2025
Salesforce
Technology · 1,000,000,000 records
Hacking group claims theft of 1 billion records from customer databases
1 Oct 2025
High1 Oct 2025
Qantas Airways
Sector not stated · Records not stated
Personal data of customers leaked online after being stolen in July 2025 cyberattack
1 Oct 2025
High1 Oct 2025
Capita
Sector not stated · Records not stated
Data breach resulting in £14 million fine from UK ICO for GDPR infringements
1 Oct 2025
High1 Oct 2025
Vietnam Airlines
Sector not stated · Records not stated
Data breach linked to global cyberattack affecting major companies including Qantas
1 Oct 2025
Critical1 Oct 2025
Qantas
Sector not stated · 5,000,000 records
5 million customer records leaked by Scattered Lapsus$ Hunters after ransom deadline passed
1 Oct 2025
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
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