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.
5,280
Disclosures in the tracker, all years
1,993
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.
3,947 results · Disclosures in 2026. Clear filters
Critical13 Aug 2026
Organisation not named
Government · 1,395 records
The disclosure as indexed does not name the organisation.
Autonomous AI agents built on open-source frameworks breached Taiwanese government systems, compromised credentials, and probed a nuclear safety agency in a multi-day cyberattack that researchers say signals a new…
13 Aug 2026
High13 Aug 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
Hackers breached facility via private APN, supplies heat to ~50,000 residents
13 Aug 2026
Critical13 Aug 2026
Change Healthcare
Healthcare · 100,000,000 records
2024 cyberattack exposed data affecting multiple healthcare providers including IU Health
13 Aug 2026
Critical13 Aug 2026
100K+ officer and justice staff records leaked
Government · Records not stated
100K+ officer and justice staff records leaked
13 Aug 2026
Critical13 Aug 2026
Polish Medical Records Platform
Healthcare · 19,000,000 records
19M patient records stolen in cyberattack
13 Aug 2026
Critical13 Aug 2026
DentaQuest Benefits
Healthcare · Records not stated
15M health records stolen in spring breach
13 Aug 2026
Critical13 Aug 2026
Basic-Fit Gyms
Sector not stated · Records not stated
1M members' bank details and PII exposed
13 Aug 2026
High13 Aug 2026
135K police officer contact records leaked
Government · Records not stated
135K police officer contact records leaked
13 Aug 2026
Critical13 Aug 2026
MyDr Poland
Healthcare · 19,000,000 records
19M patient records stolen from medical platform
13 Aug 2026
Critical13 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
100K+ police and government contacts leaked on dark web
13 Aug 2026
Critical13 Aug 2026
Banyumas Regency Gov
Government · Records not stated
2M resident records leaked by threat actor
13 Aug 2026
Critical13 Aug 2026
Credential Aggregator DB
Sector not stated · Records not stated
24B stolen credentials exposed in open database
13 Aug 2026
High13 Aug 2026
Ryanair
Retail · Records not stated
Data breach exposing court documents, flight data, and banking details claimed on hacker forums
13 Aug 2026
Critical13 Aug 2026
U.S. Federal Government
Government · Records not stated
Thousands of civil servants' passwords exposed since early 2024, including compromised White House-linked credentials
13 Aug 2026
High13 Aug 2026
CareCloud
Healthcare · 345,000 records
Cyberattack exposed data of 345,000 patients from EHR and RCM provider
13 Aug 2026
Critical13 Aug 2026
100K+ officers and staff records exposed
Government · Records not stated
100K+ officers and staff records exposed
13 Aug 2026
High13 Aug 2026
Preferred Financial Services
Finance · Records not stated
Play ransomware breach, financial PII exposed
13 Aug 2026
High13 Aug 2026
RingCentral
Technology · 1,596,490 records
1,596,490 records exposed, Email addresses, Names, Phone numbers, Physical addresses
13 Aug 2026
Critical13 Aug 2026
Marianne Kolbasuk McGee
Healthcare · Records not stated
Marianne Kolbasuk McGee reports: A Canadian hospital is dealing with a ransomware attack on its facility management systems that has affected the building’s doors and heating, ventilation and air conditioning…
13 Aug 2026
Critical13 Aug 2026
100K+ police and government contacts leaked
Government · Records not stated
100K+ police and government contacts leaked
13 Aug 2026
Critical13 Aug 2026
Snowflake Breach Victims
Technology · 165,000,000 records
Billions of records stolen across 165 organizations
13 Aug 2026
Critical13 Aug 2026
One Medical
Healthcare · Records not stated
8.8TB stolen from legacy systems by ShinyHunters
13 Aug 2026
Critical13 Aug 2026
13 Aug 2026
Critical13 Aug 2026
Exposed Elasticsearch Database
Sector not stated · Records not stated
24B stolen credentials publicly exposed
13 Aug 2026
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