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.
5,383
Disclosures in the tracker, all years
2,096
Of those, indexed in 2026
17
Added in November
28
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 4 Nov 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
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
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
Critical17 Oct 2023
AndroidLista
Retail · 6,640,643 records
6,640,643 records exposed, Email addresses, Names, Passwords, Usernames
17 Oct 2023
Medium16 Oct 2023
Yamaha Motor Canada
Sector not stated · Records not stated
Ransomware compromised Canadian subsidiary, employee data stolen
16 Oct 2023
Critical16 Oct 2023
Comcast Business
Sector not stated · 35,900,000 records
35.9M customer records exposed in CitrixBleed exploitation
16 Oct 2023
Critical16 Oct 2023
Xfinity / Comcast (CitrixBleed)
Technology · 35,900,000 records
35.9M customers affected by Citrix Bleed exploitation
16 Oct 2023
Critical16 Oct 2023
Comcast Xfinity
Technology · 35,900,000 records
35.9M customer records exposed via Citrix Bleed vulnerability
16 Oct 2023
Medium16 Oct 2023
16 Oct 2023
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