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.
5,276
Disclosures in the tracker, all years
1,989
Of those, indexed in 2026
34
Added in October
11
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 13 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
3,942 results · Disclosures in 2026. Clear filters
High1 Oct 2026
Advantest
Technology · Records not stated
SSNs and passport data stolen in ransomware attack; disclosed 233 days after detection
1 Oct 2026
Critical1 Oct 2026
Oracle Health (Cerner)
Healthcare · 20,000,000 records
Nearly 20 million patient records exposed across 80 U.S. hospitals
1 Oct 2026
High1 Oct 2026
Canadian Mennonite University (CMU)
Education · Records not stated
Sensitive personal information including SINs and tax records stolen from thousands of current and former students and employees
1 Oct 2026
High1 Oct 2026
Daiwa Securities
Finance · 220,000 records
220,000 records including 110,000 with personal data exposed via unauthorized access to vendor server
1 Oct 2026
Critical1 Oct 2026
Lawson
Retail · 2,155,345 records
2,155,345 records of personal information leaked due to unauthorized access to Lawson IDs
1 Oct 2026
High1 Oct 2026
University of Illinois Chicago
Education · Records not stated
Ransomware attack on College of Medicine resulted in theft of medical information
1 Oct 2026
High1 Oct 2026
Holland & Knight
Legal · Records not stated
Unauthorized access to law firm systems affecting firm and 14 clients; data security incident disclosed
1 Oct 2026
High1 Oct 2026
ASOS
Retail · Records not stated
Third-party communication platform compromised; hackers accessed customer personal data beyond basic contact details
1 Oct 2026
Medium1 Oct 2026
Organisation not named
Technology · Records not stated
The disclosure as indexed does not name the organisation.
One of Poland’s major online invoicing platforms suffered a data breach that may have exposed information belonging to its users, their customers and business partners.
1 Oct 2026
High1 Oct 2026
New Hampshire Supreme Court
Legal · Records not stated
13 years of case files exposed after unauthorized access to court records
1 Oct 2026
Medium30 Sep 2026
Medela
Healthcare · 423,947 records
423,947 records exposed, Email addresses, Employers, Job titles, Names and 4 more
30 Sep 2026
Critical30 Sep 2026
Bitget
Finance · Records not stated
Cryptocurrency exchange Bitget revealed today that attackers who stole $387.5 million last week breached its systems after exploiting a zero-day flaw in third-party security products.
30 Sep 2026
Critical29 Sep 2026
Organisation not named
Retail · 68,000,000 records
The disclosure as indexed does not name the organisation.
Andrey Mihayloff reports: Dodo Pizza has confirmed a cyberattack on its IT systems, admitting that attackers may have accessed personal data of a portion of its customer base. The company reported the breach to…
29 Sep 2026
Critical29 Sep 2026
Arizona Supreme Court
Legal · Records not stated
A spokesperson for the court system told Recorded Future News that the incident did not involve ransomware and the hackers have not issued ransom demands for the stolen data as of Monday.
29 Sep 2026
Medium28 Sep 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
ShinyHunters tells Hackread it never planned to publish or sell stolen FBI data and says its ultimatum was part of a marketing campaign to counter FBI claims.
28 Sep 2026
Critical28 Sep 2026
Japan's Keio
Sector not stated · Records not stated
Keio Corporation (Keio), a major private railway operator in Japan, said its network was hit by a ransomware attack over the weekend, disrupting some of its business systems.
28 Sep 2026
Critical28 Sep 2026
Labcorp
Healthcare · 10,000,000 records
2019 data breach affected approximately 10 million people; settled with 40 states for $2.2 million
28 Sep 2026
Critical28 Sep 2026
Times Car
Sector not stated · 6,600,000 records
Japanese car-sharing service Times Car has confirmed that approximately 6.6 million user accounts were compromised in a cyberattack disclosed late last week.
28 Sep 2026
High28 Sep 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Hackers stole personal data from a Polish healthcare software provider in the latest cyberattack to hit the country’s medical sector in recent months.
28 Sep 2026
Medium26 Sep 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Polish healthcare entities have been the victims of cyberattacks recently. First, it was the MyDr system. Now it’s a software manufacturer that markets the Medyc software used by Polish healthcare providers.…
26 Sep 2026
Critical25 Sep 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
The Clop ransomware gang has moved its data leak site to a new Tor address after confirming its previous server was compromised and defaced through an unpatched Grav CMS flaw that BleepingComputer has learned is an…
25 Sep 2026
High25 Sep 2026
Woodfords Family Services
Healthcare · Records not stated
Patient and family data compromised in 2024 ransomware attack
25 Sep 2026
High25 Sep 2026
Sax
Finance · 220,000 records
220,000 records exposed in 2024 data breach at US accounting firm
25 Sep 2026
High25 Sep 2026
DocketWise
Legal · 143,000 records
143,000 records compromised in data breach
25 Sep 2026
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