Weekly briefing No. 41 published 4 Oct 2026
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
7
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 16 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

Critical12 Aug 2026
135K law enforcement contact records leaked
Government · Records not stated
135K law enforcement contact records leaked
12 Aug 2026
Critical12 Aug 2026
100K+ police officer records exposed
Government · Records not stated
100K+ police officer records exposed
12 Aug 2026
High12 Aug 2026
100K+ officer identities and contacts exposed
Government · Records not stated
100K+ officer identities and contacts exposed
12 Aug 2026
Critical12 Aug 2026
Navia Benefits Solutions
Finance · Records not stated
2.7M SSNs and benefits records leaked
12 Aug 2026
High12 Aug 2026
Munson Healthcare
Healthcare · 120,000 records
Data breach exposed 120,000 patients' information
12 Aug 2026
High12 Aug 2026
Intesa Sanpaolo
Finance · Records not stated
Insider threat - employee unlawfully accessed data over 2+ years
12 Aug 2026
High12 Aug 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Third-party vendor breach compromised patient data at Huntsville Hospital Health System, leading to class action lawsuit
12 Aug 2026
High12 Aug 2026
100K+ officers and staff contact data leaked
Government · Records not stated
100K+ officers and staff contact data leaked
12 Aug 2026
Critical12 Aug 2026
135K officer and staff contacts leaked
Government · Records not stated
135K officer and staff contacts leaked
12 Aug 2026
Medium12 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Leaked passwords, social engineering and spoofed social media sites are among the tools hackers are using to gather individuals' private content and sell it online, the FBI said.
12 Aug 2026
Critical12 Aug 2026
US Government
Government · Records not stated
Thousands of civil servants and White House passwords exposed since early 2024
12 Aug 2026
Critical12 Aug 2026
MCBS
Healthcare · 1,200,000 records
Medical business management company breach exposed over 1.2 million individuals' data
12 Aug 2026
High12 Aug 2026
VITAS Hospice Services
Healthcare · 319,000 records
319K patient records accessed via vendor account
12 Aug 2026
High12 Aug 2026
KT
Technology · Records not stated
South Korean telecom company data breach via illegal base stations causing personal data exposure
12 Aug 2026
High12 Aug 2026
FortiBleed Campaign (Fortinet FortiGate)
Technology · Records not stated
Credential exposure campaign exposed valid admin/VPN credentials for 73,932 firewall systems
12 Aug 2026
High12 Aug 2026
Lidl Germany
Retail · Records not stated
Customer names, DOBs, emails and orders exposed
12 Aug 2026
High12 Aug 2026
Morguard Canadian Real Estate
Finance · Records not stated
Data exposure threatened post-failed negotiations
12 Aug 2026
High12 Aug 2026
Liechtenstein Beneficial Ownership Register
Government · Records not stated
31K corporate ownership records exposed
12 Aug 2026
High12 Aug 2026
Morguard Canada
Finance · Records not stated
Corporate data exfiltrated by Helix ransomware
12 Aug 2026
Critical12 Aug 2026
100K+ officer and justice professional records exposed
Government · Records not stated
100K+ officer and justice professional records exposed
12 Aug 2026
High12 Aug 2026
KT
Technology · Records not stated
Personal data breach via illegal base stations causing unauthorized micropayments; fined 53.9 billion won
12 Aug 2026
Critical12 Aug 2026
Blue Cross-Blue Shield
Healthcare · Records not stated
Massive data breach; Montana insurance commissioner investigation announced for failure to report breach promptly.
12 Aug 2026
High12 Aug 2026
Craneware
Healthcare · Records not stated
Hospital software vendor supply-chain attack exposed healthcare customer data
12 Aug 2026
High12 Aug 2026
AssetMark Wealth Management
Finance · 570,000 records
570K client records accessed
12 Aug 2026
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