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.

5,416
Disclosures in the tracker, all years
2,131
Of those, indexed in 2026
55
Added in November
27
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 8 Nov 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.

Worldwide · How they got in

Incidents worldwide, by country.

78 incidents from 10 countries in the last 90 days, each from a public source and reviewed before it is shown. Where the source says how the attackers got in, the row says so.

  1. Australia4 Nov 2026Bristol City Council (Trading with Schools platform)The source does not say how they got in.Yahoo News Australia (citing BBC)
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
Critical28 Sep 2023
ESO Solutions
Healthcare · 2,700,000 records
2.7M patient records exposed in ambulance service vendor breach
28 Sep 2023
High27 Sep 2023
Stanford University (2023)
Education · 27,000 records
27K individual records exposed in Akira ransomware
27 Sep 2023
Critical23 Sep 2023
Johnson Controls International
Sector not stated · Records not stated
Dark Angels ransomware stole 27TB and demanded $51M
23 Sep 2023
Critical22 Sep 2023
PhilHealth (Philippines)
Healthcare · Records not stated
Medusa ransomware stole 750GB of patient data from Philippines health insurer
22 Sep 2023
Medium22 Sep 2023
Commonwealth Financial Network
Finance · 28,000 records
28K records exposed
22 Sep 2023
High20 Sep 2023
dBforums
Technology · 363,468 records
363,468 records exposed, Dates of birth, Email addresses, IP addresses, Passwords and 1 more
20 Sep 2023
Medium19 Sep 2023
North Kansas City Hospital
Healthcare · 47,000 records
47K patient records exposed
19 Sep 2023
Medium18 Sep 2023
Safeco Insurance
Finance · Records not stated
34K policyholder records exposed
18 Sep 2023
Medium18 Sep 2023
Fenwick & West
Sector not stated · Records not stated
68K legal client records exposed
18 Sep 2023
Medium15 Sep 2023
Aritzia (Vancouver)
Retail · Records not stated
Customer order data exposed in vendor breach
15 Sep 2023
High14 Sep 2023
730K member records exposed
Healthcare · Records not stated
730K member records exposed
14 Sep 2023
High14 Sep 2023
730K member records exposed
Healthcare · Records not stated
730K member records exposed
14 Sep 2023
High14 Sep 2023
730K member records exposed
Healthcare · Records not stated
730K member records exposed
14 Sep 2023
High14 Sep 2023
730K member records exposed
Healthcare · Records not stated
730K member records exposed
14 Sep 2023
High14 Sep 2023
730K member records exposed
Healthcare · Records not stated
730K member records exposed
14 Sep 2023
High14 Sep 2023
730K member records exposed
Healthcare · Records not stated
730K member records exposed
14 Sep 2023
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