Weekly briefing No. 42 published 30 Oct 2026
Intelligence · Disclosure tracker

Every public disclosure, dated and sourced.

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.

5,405
Disclosures in the tracker, all years
2,119
Of those, indexed in 2026
42
Added in November
43
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 6 Nov 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.

Medium1 Oct 2023
87K patient records exposed
Healthcare · 87,000 records
87K patient records exposed
1 Oct 2023
Medium1 Oct 2023
87K patient records exposed
Healthcare · 87,000 records
87K patient records exposed
1 Oct 2023
Medium1 Oct 2023
87K patient records exposed
Healthcare · 87,000 records
87K patient records exposed
1 Oct 2023
Medium1 Oct 2023
87K patient records exposed
Healthcare · 87,000 records
87K patient records exposed
1 Oct 2023
Medium1 Oct 2023
87K patient records exposed
Healthcare · 87,000 records
87K patient records exposed
1 Oct 2023
Medium1 Oct 2023
87K patient records exposed
Healthcare · 87,000 records
87K patient records exposed
1 Oct 2023
Medium1 Oct 2023
87K patient records exposed
Healthcare · 87,000 records
87K patient records exposed
1 Oct 2023
Medium1 Oct 2023
87K patient records exposed
Healthcare · 87,000 records
87K patient records exposed
1 Oct 2023
Medium1 Oct 2023
87K patient records exposed
Healthcare · 87,000 records
87K patient records exposed
1 Oct 2023
Medium1 Oct 2023
87K patient records exposed
Healthcare · 87,000 records
87K patient records exposed
1 Oct 2023
Medium1 Oct 2023
87K patient records exposed
Healthcare · 87,000 records
87K patient records exposed
1 Oct 2023
Medium1 Oct 2023
87K patient records exposed
Healthcare · 87,000 records
87K patient records exposed
1 Oct 2023
Medium1 Oct 2023
87K patient records exposed
Healthcare · 87,000 records
87K patient records exposed
1 Oct 2023
Critical1 Oct 2023
Japan Aerospace Agency (JAXA)
Government · Records not stated
October 2023 data breach leveraging VPN and Microsoft 365 security holes, attributed to Chinese state actors
1 Oct 2023
Critical1 Oct 2023
Japan Aerospace Agency
Government · Records not stated
October data breach leveraged VPN and Microsoft 365 security holes, attributed to Chinese state actors
1 Oct 2023
High1 Oct 2023
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Unauthorized access to systems; attack leveraged VPN and Microsoft 365 security holes, attributed to Chinese state actors
1 Oct 2023
Critical1 Oct 2023
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Unauthorized access to systems with data compromise, attributed to state actors exploiting VPN and Microsoft 365 vulnerabilities
1 Oct 2023
High1 Oct 2023
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Unauthorized access and data compromise, attributed to state actors exploiting VPN and Microsoft 365 security holes
1 Oct 2023
Critical1 Oct 2023
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Unauthorized access and compromised information, attributed to Chinese state actors exploiting VPN and Microsoft 365 security holes
1 Oct 2023
Medium1 Oct 2023
Hanover Insurance
Finance · Records not stated
29K policyholder records exposed
1 Oct 2023
Medium1 Oct 2023
87K patient records exposed
Healthcare · 87,000 records
87K patient records exposed
1 Oct 2023
Medium1 Oct 2023
Nashua School District (NH)
Education · Records not stated
8K student records exposed
1 Oct 2023
High30 Sep 2023
Motel One (Germany)
Sector not stated · Records not stated
ALPHV stole 6TB from hotel chain, guest records including credit card data published
30 Sep 2023
Medium28 Sep 2023
Berkshire Hathaway (insurance)
Finance · Records not stated
28K policyholder records exposed
28 Sep 2023
Were you affected?