Disclosure tracker › Disclosures in 2026
Intelligence · Disclosure tracker
Disclosures in 2026
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.
5,278
Disclosures in the tracker, all years
1,991
Of those, indexed in 2026
37
Added in October
8
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 14 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
3,945 results · Disclosures in 2026. Clear filters
Critical14 Aug 2026
100K+ police officer records leaked
Government · Records not stated
100K+ police officer records leaked
14 Aug 2026
Critical14 Aug 2026
General Electric
Sector not stated · Records not stated
Data stolen by Clop ransomware group
14 Aug 2026
Critical14 Aug 2026
14 Aug 2026
Critical13 Aug 2026
Unnamed medical billing company
Healthcare · 1,300,000 records
Ransomware attack exposing protected health data on 1.3 million people
13 Aug 2026
High13 Aug 2026
Personal and medical information including SSNs
Healthcare · Records not stated
Personal and medical information including SSNs exposed in data breach
13 Aug 2026
High13 Aug 2026
Sensitive data
Government · Records not stated
Sensitive data leaked due to woeful security practices and unpatched CMS
13 Aug 2026
High13 Aug 2026
Polish Energy Plant
Sector not stated · Records not stated
Heat-and-power facility supplying 50,000 residents breached via private APN
13 Aug 2026
Critical13 Aug 2026
Ticketmaster
Retail · 560,000,000 records
Data breach part of 2024 Snowflake campaign affecting 165+ companies. Hacker pleaded guilty to fraud and extortion.
13 Aug 2026
Critical13 Aug 2026
MCBS
Healthcare · 1,200,000 records
Medical business management company data breach affecting 1.2 million individuals with personal information exposed
13 Aug 2026
Critical13 Aug 2026
100K+ police officer records leaked by ExfilSquad
Government · Records not stated
100K+ police officer records leaked by ExfilSquad
13 Aug 2026
Critical13 Aug 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Patient data compromised in 2025 Cerner breach, ongoing class action lawsuit
13 Aug 2026
High13 Aug 2026
River Bank
Finance · Records not stated
Ransomware attack with data deletion confirmation received from ransomware gang
13 Aug 2026
High13 Aug 2026
Clover Health
Healthcare · Records not stated
Data breach disclosed in securities filing; type and extent of exposed data not yet determined
13 Aug 2026
High13 Aug 2026
WellPoint Texas
Healthcare · Records not stated
Data breach exposed personal information; class action investigation launched
13 Aug 2026
Critical13 Aug 2026
Connor Moucka Snowflake Campaign
Technology · 165,000,000 records
165+ orgs breached, billions of records stolen
13 Aug 2026
High13 Aug 2026
100K+ officers' contact data exposed
Government · Records not stated
100K+ officers' contact data exposed
13 Aug 2026
Critical13 Aug 2026
Snowflake Customer Environments
Technology · 165,000,000 records
165+ orgs breached, billions of records stolen
13 Aug 2026
Critical13 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
China-linked malware found on USB drives used on classified networks, breach unnoticed for nearly a year
13 Aug 2026
Critical13 Aug 2026
100K+ police officer contacts leaked by ExfilSquad
Government · Records not stated
100K+ police officer contacts leaked by ExfilSquad
13 Aug 2026
High13 Aug 2026
Trezor
Technology · Records not stated
Customer records of 13,689 buyers exposed in sophisticated phishing attack
13 Aug 2026
Critical13 Aug 2026
100K+ police officers PII exfiltrated
Government · Records not stated
100K+ police officers PII exfiltrated
13 Aug 2026
High13 Aug 2026
100K+ officer contact records exposed
Government · Records not stated
100K+ officer contact records exposed
13 Aug 2026
Critical13 Aug 2026
Polish Patient Records Platform
Healthcare · Records not stated
19M medical records stolen in cyberattack
13 Aug 2026
Critical13 Aug 2026
US Government Civil Service
Government · Records not stated
Thousands of civil servants' passwords and White House-linked passwords exposed since early 2024
13 Aug 2026
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