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.

5,430
Disclosures in the tracker, all years
2,145
Of those, indexed in 2026
72
Added in November
24
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 10 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. France9 Nov 2026SEGA (via newsletter provider ARARA)How they got in: a supplier or vendor that was compromised first.BleepingComputer
  2. France8 Nov 2026Iris Ohyama (Iris Plaza)How they got in: a supplier or vendor that was compromised first.BleepingComputer
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Azienda Ospedaliera di Verona
Healthcare · Records not stated
Rhysida ransomware hit hospital, patient records and medical images stolen
23 Oct 2023
Critical23 Oct 2023
Five Ontario Hospitals (TransForm)
Healthcare · 267,000 records
TransForm cyberattack hit 5 hospitals in Windsor-Essex, 267,000 patients notified
23 Oct 2023
High23 Oct 2023
Mackenzie Health (York Region)
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient care diverted to other facilities
23 Oct 2023
Critical21 Oct 2023
Tunngle
Retail · 8,192,928 records
8,192,928 records exposed, Email addresses, IP addresses, Passwords, Usernames
21 Oct 2023
High20 Oct 2023
Sphero
Education · 832,255 records
832,255 records exposed, Dates of birth, Email addresses, Geographic locations, Names and 1 more
20 Oct 2023
Critical19 Oct 2023
Okta (UK/Global Impact)
Technology · Records not stated
Customer support system breach exposed session tokens, Cloudflare, 1Password impacted
19 Oct 2023
Critical19 Oct 2023
Okta
Technology · Records not stated
Support system breach exposed customer session tokens
19 Oct 2023
Critical18 Oct 2023
Corewell Health
Healthcare · 1,000,000 records
1M patient records exposed via Welltok vendor breach
18 Oct 2023
High17 Oct 2023
Phoenix
Technology · 74,776 records
74,776 records exposed, Email addresses, IP addresses, Passwords, Usernames
17 Oct 2023
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