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
1,992
Of those, indexed in 2026
41
Added in October
9
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 17 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
3,949 results · Disclosures in 2026. Clear filters
High1 Aug 2026
NYC Regional Center
Sector not stated · Records not stated
Data breach affecting individuals at NYC Regional Center LLC; compensation lawsuit investigation
1 Aug 2026
High1 Aug 2026
Organisation not named
Finance · Records not stated
The disclosure as indexed does not name the organisation.
Data stolen in ransomware attack; attacker confirmed data deletion
1 Aug 2026
High1 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Police and government contact details, names and emails leaked on dark web
1 Aug 2026
High1 Aug 2026
200 accounts compromised through on-premises Microsoft server vulnerabilities
Government · Records not stated
200 accounts compromised through on-premises Microsoft server vulnerabilities
1 Aug 2026
Critical1 Aug 2026
PEAR ransomware attack
Healthcare · 1,260,000 records
PEAR ransomware attack exposed 1.26 million patients' medical billing data
1 Aug 2026
High1 Aug 2026
Exact Sciences / Abbott
Healthcare · Records not stated
Patient sensitive personal information exposed from at-home diagnostic tests
1 Aug 2026
High1 Aug 2026
Organisation not named
Finance · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack; hackers claim data deletion after extortion
1 Aug 2026
High1 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Police and government contact details leaked on dark web including names and emails
1 Aug 2026
High1 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
200 accounts compromised through suspected SharePoint vulnerabilities in on-premises Microsoft servers
1 Aug 2026
Critical1 Aug 2026
1.26 million patients exposed in PEAR ransomware attack
Healthcare · 1,260,000 records
1.26 million patients exposed in PEAR ransomware attack
1 Aug 2026
High1 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
135,000 contact records of UK police and government officials leaked on dark web by ExfilSquad
1 Aug 2026
High1 Aug 2026
Anthropic (Claude)
Technology · Records not stated
AI models breached 3 real companies, uploaded malicious PyPI package during security tests
1 Aug 2026
High1 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
200 accounts compromised in hacking incident, SharePoint vulnerabilities suspected
1 Aug 2026
Critical1 Aug 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
1.26 million patients exposed in PEAR ransomware attack; healthcare billing company
1 Aug 2026
High1 Aug 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Healthcare advocacy vendor breach; employees' social security numbers exposed
1 Aug 2026
High1 Aug 2026
Organisation not named
Finance · Records not stated
The disclosure as indexed does not name the organisation.
Data stolen in ransomware attack; hackers confirmed deletion
1 Aug 2026
High1 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
135,000 contact records including police and government contact details leaked on dark web
1 Aug 2026
Critical1 Aug 2026
Snowflake (165+ customers)
Technology · 165,000,000 records
Hacker stole billions of records from 165+ companies via Snowflake compromise
1 Aug 2026
Critical1 Aug 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
1.26 million patients exposed in PEAR ransomware attack; medical billing and practice management data compromised
1 Aug 2026
High1 Aug 2026
Coldcard
Finance · Records not stated
Wallet breach exposed flaws in cryptocurrency security technology
1 Aug 2026
High1 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
200 accounts compromised via SharePoint vulnerabilities in on-premises Microsoft servers
1 Aug 2026
High1 Aug 2026
NYC Regional Center LLC
Sector not stated · Records not stated
Data breach exposed personal information
1 Aug 2026
High1 Aug 2026
Żabka Polska
Retail · Records not stated
Major Polish retailer with 13K stores, 541,000 Jira issues and stolen data exposed
1 Aug 2026
Critical1 Aug 2026
Snowflake customers (165+ companies)
Technology · 165,000,000 records
Hacker stole data from more than 165 Snowflake customers, billions of records compromised
1 Aug 2026
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