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.
5,369
Disclosures in the tracker, all years
2,085
Of those, indexed in 2026
4
Added in November
26
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 1 Nov 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
High1 Feb 2024
Bank of America
Finance · 57,028 records
Data breach affected 57,000 accounts with deferred compensation plans, PII compromised via third party
1 Feb 2024
High1 Feb 2024
Bank of America
Finance · 57,028 records
Data breach affected 57,000 accounts with deferred compensation plans; PII compromised via third party
1 Feb 2024
High1 Feb 2024
Bank of America
Finance · 57,028 records
Data breach affected 57,000 deferred compensation plan accounts exposing PII through third party
1 Feb 2024
Critical1 Feb 2024
Change Healthcare
Healthcare · 100,000,000 records
Ransomware attack exposed data from up to 100 million people, disrupted U.S. healthcare systems
1 Feb 2024
High1 Feb 2024
Bank of America
Finance · 57,028 records
Data breach affecting 57,000 deferred compensation plan accounts, PII compromised via third party
1 Feb 2024
Critical1 Feb 2024
Change Healthcare
Healthcare · 100,000,000 records
Ransomware attack exposed data of up to 100 million people, disrupted U.S. healthcare systems
1 Feb 2024
Critical1 Feb 2024
Change Healthcare
Healthcare · 100,000,000 records
Ransomware attack exposed data from up to 100M people in healthcare systems
1 Feb 2024
High1 Feb 2024
Walmart Spark Driver
Retail · Records not stated
Spark Driver portal cyberattack exposing sensitive data of delivery service users
1 Feb 2024
High1 Feb 2024
U-Haul
Retail · Records not stated
Data breach from cyberattack on transport, haulage, and storage firm
1 Feb 2024
Critical1 Feb 2024
Change Healthcare
Healthcare · 100,000,000 records
Ransomware attack in Feb 2024 exposed data from up to 100 million people, disrupting U.S. healthcare systems
1 Feb 2024
High1 Feb 2024
Walmart Spark Driver
Retail · Records not stated
Cyberattack on Spark Driver portal accessed sensitive data of drivers
1 Feb 2024
High1 Feb 2024
Advania
Healthcare · Records not stated
Cyberattack affected at least 60 healthcare customers in Sweden
1 Feb 2024
High1 Feb 2024
U-Haul
Retail · Records not stated
Suffered cyberattack exposing customer data
1 Feb 2024
High1 Feb 2024
Walmart (Spark Driver Portal)
Retail · Records not stated
Cyberattack on crowdsourcing delivery service exposing driver sensitive data
1 Feb 2024
Critical1 Feb 2024
UnitedHealthcare
Healthcare · Records not stated
2024 cyberattack exposed millions of patients' health and insurance information
1 Feb 2024
High1 Feb 2024
Walmart (Spark Driver portal)
Retail · Records not stated
Cyberattack on crowdsourcing delivery service portal, sensitive employee/driver data accessed
1 Feb 2024
High1 Feb 2024
Advania
Technology · Records not stated
Swedish cloud provider breach affecting at least 60 customers, including healthcare services
1 Feb 2024
High1 Feb 2024
Walmart Spark
Retail · Records not stated
Crowdsourcing delivery service breached, sensitive driver data accessed
1 Feb 2024
High1 Feb 2024
Walmart (Spark Driver)
Retail · Records not stated
Malicious actors accessed sensitive data of Spark Driver delivery service drivers
1 Feb 2024
Critical1 Feb 2024
McLaren Health Care
Healthcare · Records not stated
Two ransomware breaches in 2023-2024 affected 3.2M+ victims; settled class-action for $14M
1 Feb 2024
Critical1 Feb 2024
TriZetto
Healthcare · 3,400,000 records
3.4 million people's health and personal data stolen in 2024 cyberattack affecting health insurance tech provider
1 Feb 2024
High1 Feb 2024
Walmart Spark Driver
Retail · Records not stated
Cyberattack accessed sensitive data of delivery drivers through Spark Driver portal
1 Feb 2024
High1 Feb 2024
Walmart
Retail · Records not stated
Spark Driver portal breached, sensitive data of delivery drivers accessed
1 Feb 2024
Critical1 Feb 2024
Change Healthcare
Healthcare · 100,000,000 records
Ransomware attack in Feb 2024 exposed data from up to 100 million people
1 Feb 2024
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