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.
5,274
Disclosures in the tracker, all years
1,988
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
Critical15 Aug 2026
Instructure Canvas
Education · Records not stated
Supply chain breach generating 58% of breach notices in 2026, affecting educational institutions
15 Aug 2026
Critical15 Aug 2026
Instructure
Education · Records not stated
Canvas platform supply chain breach generated 58% of all 2026 breach notices affecting multiple organizations
15 Aug 2026
High15 Aug 2026
Comcast
Technology · 35,000,000 records
Xfinity data breach exposed personal information; $117.5M settlement with customers
15 Aug 2026
Critical15 Aug 2026
MCBS
Healthcare · 1,200,000 records
Medical business management company data breach exposed 1.2 million individuals' personal information
15 Aug 2026
Medium15 Aug 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
CRPx0 made the news last month for its somewhat novel approach of offering free OnlyFans accounts to get victims to click links that would deploy its malware. Since August 7, when it launched a leak site on both the…
15 Aug 2026
Medium15 Aug 2026
Hyeon Ye-Seul
Education · Records not stated
Hyeon Ye-Seul reports: Personal information belonging to roughly 180,000 students, alumni and staff at Sogang University was exposed in a cyberattack, the university said Saturday. The university said it had confirmed…
15 Aug 2026
High15 Aug 2026
Computer Country Networks Canada
Technology · Records not stated
Blacknevas ransomware struck Ontario IT provider
15 Aug 2026
Critical15 Aug 2026
EY Client Platform
Finance · Records not stated
Client documents exfiltrated via third-party platform
15 Aug 2026
Medium14 Aug 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
The exfiltrated data may be related to misconfiguration of Microsoft Power Page portals, according to a new report.
14 Aug 2026
Critical14 Aug 2026
Organisation not named
Sector not stated · 7,300,000 records
The disclosure as indexed does not name the organisation.
7.3 million Chess.com profiles leaked online: the data is genuine, but evidence points to large-scale scraping, not a server breach. Free is a strange price for stolen data, and that’s exactly what makes this…
14 Aug 2026
High14 Aug 2026
Clover Health
Healthcare · Records not stated
Data breach disclosed in securities filing; type and scope of exposed data not yet determined
14 Aug 2026
Critical14 Aug 2026
Origin Energy
Sector not stated · Records not stated
Data breach affected approximately 900,000 current and former customers; personal information exposed
14 Aug 2026
Critical14 Aug 2026
Comcast/Xfinity
Technology · 35,000,000 records
Cyberattack exposed personal information of Xfinity customers; resulted in $117.5M settlement
14 Aug 2026
High14 Aug 2026
100K+ officer contact records leaked
Government · Records not stated
100K+ officer contact records leaked
14 Aug 2026
Critical14 Aug 2026
Abbott Laboratories
Healthcare · 30,000,000 records
30M+ customer rows stolen by ShinyHunters
14 Aug 2026
Critical14 Aug 2026
14 Aug 2026
Medium14 Aug 2026
Portable Intelligence Canada
Technology · Records not stated
BlackNevas breach confirmed Aug 14
14 Aug 2026
High14 Aug 2026
American Addiction Centers
Healthcare · Records not stated
SSNs and health data stolen from Salesforce
14 Aug 2026
Critical14 Aug 2026
Snowflake customers (165 breaches)
Technology · 165,000,000 records
Data storage platform hacked; 165 breaches affecting over 165 million records total across multiple organizations
14 Aug 2026
Critical14 Aug 2026
Organisation not named
Technology · 24,000,000 records
The disclosure as indexed does not name the organisation.
24M customer breach due to lack of basic security controls; three major GDPR violations
14 Aug 2026
High14 Aug 2026
Comcast/Xfinity
Technology · 35,000,000 records
Cyberattack exposed personal information of Xfinity customers; $117.5M settlement reached
14 Aug 2026
High14 Aug 2026
14 Aug 2026
Critical14 Aug 2026
100K+ officer and staff contacts leaked
Government · Records not stated
100K+ officer and staff contacts leaked
14 Aug 2026
Critical14 Aug 2026
100K police officer records exfiltrated
Government · Records not stated
100K police officer records exfiltrated
14 Aug 2026
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