Weekly briefing No. 41 published 4 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.

5,347
Disclosures in the tracker, all years
2,062
Of those, indexed in 2026
122
Added in October
14
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 27 Oct 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.

75 incidents from 12 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. France20 Oct 2026US tax preparation businessesThe source does not say how they got in.The Record
Critical1 Apr 2026
ANTS (French ID Agency)
Government · 19,000,000 records
Cyberattack exposed 19 million records linked to personal identity data
1 Apr 2026
High1 Apr 2026
Mexican Government Agencies
Government · Records not stated
Single hacker compromised 9 government agencies using Claude Code and OpenAI tools
1 Apr 2026
High1 Apr 2026
U.S. Government Agency (CISA)
Government · Records not stated
Unnamed federal agency breached via Cisco vulnerability; FIRESTARTER backdoor maintained access through March
1 Apr 2026
High1 Apr 2026
Legend Senior Care
Healthcare · Records not stated
Senior care provider affected by ransomware attack exposing patient data
1 Apr 2026
High1 Apr 2026
Windward Life Care
Healthcare · Records not stated
Senior care provider affected by ransomware attack exposing patient data
1 Apr 2026
High1 Apr 2026
South Florida Injury Centers
Healthcare · 1,525 records
1,525 individuals affected; SSNs and medical records exposed
1 Apr 2026
Critical1 Apr 2026
Fortinet
Technology · Records not stated
75,000 firewalls compromised exposing global enterprises
1 Apr 2026
Critical1 Apr 2026
UK Biobank
Healthcare · Records not stated
Confidential health records exposed online and advertised for sale on Chinese website
1 Apr 2026
Critical1 Apr 2026
Intesa Sanpaolo
Finance · Records not stated
Insider threat exposed €31.8m in regulatory fines; employee unlawfully accessed data for 2+ years
1 Apr 2026
High1 Apr 2026
Tribeca Festival
Sector not stated · Records not stated
Data leak exposed hundreds of thousands of records and contact info for celebrities
1 Apr 2026
High1 Apr 2026
Intesa Sanpaolo S.p.A.
Finance · Records not stated
Employee unlawfully accessed customer data over two years
1 Apr 2026
High1 Apr 2026
Nissan
Retail · Records not stated
Data breach involving information held by third-party vendor
1 Apr 2026
High1 Apr 2026
Ryanair
Retail · Records not stated
Attackers claim to have stolen court documents, flight data, and banking details posted on hacker forums.
1 Apr 2026
Critical1 Apr 2026
ANTS (France ID Agency)
Government · 19,000,000 records
Cyberattack exposed 19 million records from French national identity agency
1 Apr 2026
Critical1 Apr 2026
ANTS
Government · 19,000,000 records
Cyberattack on France's national identity agency exposed 19 million records
1 Apr 2026
High1 Apr 2026
SUCCESS
Finance · 253,510 records
253,510 records exposed, Device information, Email addresses, IP addresses, Names and 4 more
1 Apr 2026
Medium31 Mar 2026
Cuties AI
Government · 144,250 records
144,250 records exposed, Avatars, Display names, Email addresses
31 Mar 2026
High27 Mar 2026
BreachForums Version 5
Technology · 339,778 records
339,778 records exposed, Email addresses, Passwords, Usernames
27 Mar 2026
High26 Mar 2026
Sound Radix
Finance · 292,993 records
292,993 records exposed, Email addresses, Names, Passwords
26 Mar 2026
High26 Mar 2026
Scuf Gaming
Technology · 128,683 records
128,683 records exposed, Display names, Email addresses, IP addresses, Passwords and 1 more
26 Mar 2026
High23 Mar 2026
RuneScape Boards
Technology · 222,762 records
222,762 records exposed, Email addresses, IP addresses, Passwords, Usernames
23 Mar 2026
High18 Mar 2026
Aura
Finance · 903,080 records
903,080 records exposed, Customer service records, Email addresses, IP addresses, Names and 2 more
18 Mar 2026
Medium15 Mar 2026
Divine Skins
Government · 105,814 records
105,814 records exposed, Email addresses, Purchases, Usernames
15 Mar 2026
Critical15 Mar 2026
Baydöner
Finance · 1,266,822 records
1,266,822 records exposed, Dates of birth, Email addresses, Genders, Geographic locations and 5 more
15 Mar 2026
Were you affected?