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.

5,397
Disclosures in the tracker, all years
2,112
Of those, indexed in 2026
25
Added in November
32
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 5 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 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. Japan29 Oct 2026Japan AirlinesHow they got in: a supplier or vendor that was compromised first.BleepingComputer
  2. Japan29 Oct 2026Sony Network Communications (So-net / Plala ISP)The source does not say how they got in.SecurityWeek
Critical10 Jan 2023
LCBO
Retail · Records not stated
Credit card skimming malware on online store for 5 days
10 Jan 2023
High10 Jan 2023
BC Cancer Agency
Healthcare · Records not stated
Employee data and some patient info exposed
10 Jan 2023
High10 Jan 2023
LG Uplus (Korea)
Technology · 290,000 records
290,000 customer records stolen, national IDs, IMEI numbers, contact info
10 Jan 2023
Critical10 Jan 2023
Royal Mail LockBit Attack
Government · Records not stated
LockBit ransomware halted international mail for weeks, 44GB data published
10 Jan 2023
High10 Jan 2023
LCBO Web Skimmer Attack
Retail · Records not stated
Magecart web skimmer on LCBO checkout pages, customer payment cards compromised for 5 days
10 Jan 2023
High10 Jan 2023
Aflac
Finance · 1,300,000 records
100K policyholder records exposed in contractor breach
10 Jan 2023
Critical10 Jan 2023
Duolingo
Technology · 2,600,000 records
2.6M user records scraped via API
10 Jan 2023
Medium9 Jan 2023
Des Moines Public Schools
Education · Records not stated
6,700+ student and staff records exposed in ransomware
9 Jan 2023
High8 Jan 2023
Latvian Foreign Ministry
Government · Records not stated
State-sponsored hackers compromised Latvian diplomatic communications
8 Jan 2023
Medium8 Jan 2023
Northeast Surgical Group
Healthcare · 15,000 records
15K patient records exposed
8 Jan 2023
Medium7 Jan 2023
DoorDash
Finance · 367,476 records
367,476 records exposed, Email addresses, Geographic locations, Names, Partial credit card data
7 Jan 2023
Critical7 Jan 2023
SlideTeam
Retail · 1,464,271 records
1,464,271 records exposed, Email addresses, Names, Passwords
7 Jan 2023
Medium7 Jan 2023
Wichita State University
Education · Records not stated
36K student records exposed in data breach
7 Jan 2023
Medium6 Jan 2023
Rush University Medical Center
Healthcare · 45,000 records
45K patient records exposed in vendor breach
6 Jan 2023
Critical5 Jan 2023
Twitter (200M)
Technology · 211,524,284 records
211,524,284 records exposed, Email addresses, Names, Social media profiles, Usernames
5 Jan 2023
Medium5 Jan 2023
US Bank (vendor)
Finance · 11,000 records
11K customer records exposed via vendor breach
5 Jan 2023
Critical5 Jan 2023
NextGen Healthcare
Healthcare · 1,000,000 records
1M patient records exposed in BlackCat ransomware attack
5 Jan 2023
Medium4 Jan 2023
16K student records exposed
Education · Records not stated
16K student records exposed
4 Jan 2023
Medium4 Jan 2023
16K student records exposed
Education · Records not stated
16K student records exposed
4 Jan 2023
Medium4 Jan 2023
16K student records exposed
Education · Records not stated
16K student records exposed
4 Jan 2023
Medium4 Jan 2023
16K student records exposed
Education · Records not stated
16K student records exposed
4 Jan 2023
Medium4 Jan 2023
16K student records exposed
Education · Records not stated
16K student records exposed
4 Jan 2023
Medium4 Jan 2023
16K student records exposed
Education · Records not stated
16K student records exposed
4 Jan 2023
Medium4 Jan 2023
16K student records exposed
Education · Records not stated
16K student records exposed
4 Jan 2023
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