Disclosure tracker › Government disclosures
Intelligence · Disclosure tracker
Government disclosures
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.
5,265
Disclosures in the tracker, all years
1,978
Of those, indexed in 2026
18
Added in October
14
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 10 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
4,835 results · Government disclosures. Clear filters
High1 Dec 2025
Post Office Limited
Government · Records not stated
Entirely preventable data breach affecting Horizon IT scandal victims
1 Dec 2025
High1 Dec 2025
Post Office Limited
Government · Records not stated
Data breach of Horizon IT scandal victims' personal information; entirely preventable according to ICO
1 Dec 2025
High1 Dec 2025
Post Office Limited
Government · Records not stated
Preventable data breach affecting Horizon IT scandal victims
1 Dec 2025
High1 Dec 2025
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Inadvertent exposure of personal information for 700K state residents
1 Dec 2025
High1 Dec 2025
Post Office Limited
Government · Records not stated
Preventable data breach exposing Horizon IT scandal victims' personal information
1 Dec 2025
High1 Dec 2025
Post Office Limited
Government · Records not stated
Data breach resulted in accidental publishing of personal data of Horizon IT scandal victims
1 Dec 2025
Critical1 Dec 2025
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
1 million Social Security numbers exposed through cybersecurity loophole in government mapping service
1 Dec 2025
Critical1 Dec 2025
Mexican Government Agencies
Government · Records not stated
Single hacker exploited Claude Code and OpenAI tools to breach 9 federal agencies, millions of records stolen
1 Dec 2025
High1 Dec 2025
Water utilities (12 states)
Government · Records not stated
Cyberattacks on operational technology systems across at least 12 US states including South Dakota and Georgia
1 Dec 2025
High1 Dec 2025
North Carolina Ports Authority
Government · Records not stated
Cyberattack disrupted IT systems and operations at Port of Wilmington; systems being restored
1 Dec 2025
Critical1 Dec 2025
Mexican Government (9 agencies)
Government · Records not stated
Multiple federal agencies compromised using Claude Code and ChatGPT, millions of records stolen
1 Dec 2025
High1 Dec 2025
Thailand Ministry of Finance
Government · Records not stated
Hackers used autonomous AI agent for cyber-espionage campaign against finance ministry
1 Dec 2025
Critical1 Dec 2025
Mexican Government
Government · Records not stated
Federal government breach exposed millions of records between late Dec 2025 and mid-Feb 2026
1 Dec 2025
High1 Dec 2025
Post Office Limited
Government · Records not stated
Data breach affecting Horizon IT scandal victims caused by entirely preventable security failure
1 Dec 2025
Critical1 Nov 2025
Pajemploi
Government · 1,200,000 records
1.2 million individuals' data exposed in cybersecurity incident
1 Nov 2025
Critical1 Nov 2025
Pajemploi
Government · 1,200,000 records
Data breach exposing up to 1.2 million individuals' information at French government agency
1 Nov 2025
Critical1 Nov 2025
Pajemploi
Government · 1,200,000 records
Data breach exposed information of over 1.2 million individuals at French agency
1 Nov 2025
Critical1 Nov 2025
Pajemploi
Government · 1,200,000 records
Data breach affecting 1.2 million people including social security information
1 Nov 2025
High1 Nov 2025
North Carolina Ports
Government · Records not stated
Cyberattack forced shift to manual operations; systems restoration ongoing
1 Nov 2025
High1 Nov 2025
Post Office Limited
Government · Records not stated
Data breach of Horizon IT scandal victims' personal information ruled 'entirely preventable'
1 Nov 2025
Critical1 Nov 2025
Pajemploi
Government · 1,200,000 records
French social security service for childcare suffered data breach affecting 1.2 million people
1 Nov 2025
High1 Oct 2025
U.S. Government
Government · 53,070 records
Password exposure revealed 53,070 passwords associated with U.S. government email domains exposed since 2024
1 Oct 2025
Critical1 Oct 2025
U.S. Government Civil Servants
Government · Records not stated
Thousands of civil servants' passwords exposed since early 2024, including White House credentials
1 Oct 2025
Critical1 Oct 2025
UK Government Civil Service
Government · Records not stated
Thousands of civil servants' passwords exposed since early 2024, including White House-linked credentials
1 Oct 2025
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