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.

5,328
Disclosures in the tracker, all years
2,042
Of those, indexed in 2026
95
Added in October
22
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 23 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.

72 incidents from 9 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. United Kingdom16 Oct 2026Southville Primary School (Bristol City Council area)The source does not say how they got in.Hits Radio (West of England)
Critical1 Apr 2026
Unnamed U.S. Department (CISA)
Government · Records not stated
Breached through Cisco vulnerability; FIRESTARTER backdoor allowed unauthorized access through March
1 Apr 2026
High1 Apr 2026
Huntsville Hospital Health System
Healthcare · Records not stated
Third-party data breach compromised patient information
1 Apr 2026
High1 Apr 2026
FirstClass
Retail · Records not stated
Australian travel agency customer records compromised; threat actor claimed data on underground hacking forums
1 Apr 2026
Critical1 Apr 2026
Organisation not named
Technology · Records not stated
The disclosure as indexed does not name the organisation.
ShinyHunters breached Rockstar Games via Snowflake; 165 organizations affected in supply chain attack
1 Apr 2026
Critical1 Apr 2026
Rockstar Games
Technology · Records not stated
Breach through compromised Anodot Snowflake access by ShinyHunters group; 165 organizations affected in cascading attack.
1 Apr 2026
Critical1 Apr 2026
CISA (US Cybersecurity Agency)
Government · Records not stated
Breached through Cisco vulnerability; FIRESTARTER backdoor allowed persistent access through March
1 Apr 2026
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
Were you affected?