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.

5,574
Disclosures in the tracker, all years
2,089
Of those, indexed in 2026
8
Added in November
22
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 3 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.

77 incidents from 11 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 States30 Oct 2026The Krum Public LibraryThe source does not say how they got in.Vermont Attorney General
  2. United States30 Oct 2026Marathon HealthThe source does not say how they got in.Vermont Attorney General
  3. United States29 Oct 2026BRANDco., LLCThe source does not say how they got in.Vermont Attorney General
  4. United States29 Oct 2026Revolve Group, Inc.The source does not say how they got in.Vermont Attorney General
  5. United States29 Oct 2026The Research Foundation for Mental Health, Inc.The source does not say how they got in.Vermont Attorney General
  6. United States29 Oct 2026Del Monte Foods Corporation II Inc.The source does not say how they got in.California Attorney General
  7. United States29 Oct 2026Bangkok Bank PCL - New York BranchThe source does not say how they got in.California Attorney General
  8. United States29 Oct 2026IRhythm TechnologiesThe source does not say how they got in.SecurityWeek
  9. United States28 Oct 2026Blueberry PediatricsHow they got in: a known flaw in software the victim ran.HIPAA Journal
  10. United States28 Oct 2026CodeSecure Inc.The source does not say how they got in.Vermont Attorney General
  11. United States28 Oct 202611252227 Canada Inc.The source does not say how they got in.Vermont Attorney General
  12. United States28 Oct 2026Troutman Pepper Locke LLPThe source does not say how they got in.California Attorney General
High1 Jun 2024
Kadokawa Corporation/Niconico
Technology · Records not stated
Sophisticated cyberattack and ransomware breach exposing company systems
1 Jun 2024
High1 Jun 2024
Bedfordshire Hospital
Healthcare · Records not stated
Patient names, NHS numbers and test results hacked in 2024 cyber attack
1 Jun 2024
High1 Jun 2024
Bedfordshire Hospital
Healthcare · Records not stated
Patient data including names, NHS numbers and test results compromised in cyber attack.
1 Jun 2024
Critical1 Jun 2024
Multiple Snowflake Customers (165+)
Technology · 165,000,000 records
Hacker Connor Moucka stole data from 165+ companies including billions of records via compromised credentials
1 Jun 2024
High1 Jun 2024
SingTel (Singapore Telecommunications)
Technology · Records not stated
Breached by China state-linked hacking group in June as part of global campaign
1 Jun 2024
High1 Jun 2024
Kadokawa Corporation / Niconico
Technology · Records not stated
Sophisticated ransomware cyberattack exposed data from corporation and subsidiary
1 Jun 2024
Critical1 Jun 2024
Snowflake (165+ customers)
Technology · 165,000,000 records
Identity-based attacks exploited Snowflake customer accounts; hacker stole billions of records from 165+ companies including Ticketmaster, Rockstar Games
1 Jun 2024
Critical1 Jun 2024
Singapore Telecommunications (SingTel)
Technology · Records not stated
China state-linked hacking group breached telecom company in June as part of global campaign
1 Jun 2024
High1 Jun 2024
Kadokawa Corporation / Niconico
Technology · Records not stated
Ransomware cyberattack exposed personal information of employees and users
1 Jun 2024
Critical1 Jun 2024
Snowflake (165 customer organizations)
Technology · 165,000,000 records
Hacker stole data from 165+ Snowflake customers, billions of records compromised through identity-based attacks
1 Jun 2024
High1 Jun 2024
Kadokawa Corp.
Technology · Records not stated
Personal information of all employees of niconico video subsidiary exposed in cyberattack
1 Jun 2024
Critical1 Jun 2024
Bedfordshire Hospital
Healthcare · Records not stated
Patient names, NHS numbers, and test results exposed in cyber attack
1 Jun 2024
Critical1 Jun 2024
Organisation not named
Technology · 165,000,000 records
The disclosure as indexed does not name the organisation.
Identity-based attacks exploited Snowflake customer accounts; billions of records stolen across 165+ organizations
1 Jun 2024
High1 Jun 2024
Kadokawa Corporation/Niconico
Technology · Records not stated
Ransomware cyberattack exposed personal information of all subsidiary employees
1 Jun 2024
Critical1 Jun 2024
Organisation not named
Technology · Records not stated
The disclosure as indexed does not name the organisation.
Hacker breached 165+ companies stealing billions of records; Canadian hacker Connor Moucka pleaded guilty
1 Jun 2024
High1 Jun 2024
Singapore Telecommunications (SingTel)
Technology · Records not stated
Breached by China state-sponsored hacking group in June 2024 as part of global campaign
1 Jun 2024
High1 Jun 2024
Kadokawa Corporation/Niconico
Technology · Records not stated
Sophisticated cyberattack on publisher and video site subsidiary compromised employee personal information
1 Jun 2024
High1 Jun 2024
Kadokawa Corporation and Niconico
Technology · Records not stated
Sophisticated ransomware cyberattack affecting subsidiary video platform, employee personal information compromised
1 Jun 2024
High1 Jun 2024
Neiman Marcus
Retail · 64,000 records
64,000 people affected; hacker announced sale of stolen customer data
1 Jun 2024
Critical1 Jun 2024
Snowflake (165+ customers)
Technology · 165,000,000 records
165+ organizations including Ticketmaster, Rockstar Games affected by identity-based attacks on Snowflake customers
1 Jun 2024
Critical1 Jun 2024
Singapore Telecommunications (SingTel)
Technology · Records not stated
Breached by China state-linked hacking group in June as part of global campaign
1 Jun 2024
High1 Jun 2024
Kadokawa Corporation/Niconico
Technology · Records not stated
Ransomware breach; personal information of all employees exposed via Niconico video subsidiary
1 Jun 2024
High1 Jun 2024
Mizuno
Retail · Records not stated
Data breach confirmed after 2024 ransomware attack; customer data exposed
1 Jun 2024
High1 Jun 2024
Neiman Marcus
Retail · 64,000 records
64,000 customers impacted; hacker announced sale of stolen customer data
1 Jun 2024
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