Weekly briefing No. 41 published 4 Oct 2026
Disclosure tracker › Healthcare disclosures
Intelligence · Disclosure tracker

Healthcare disclosures

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.

5,291
Disclosures in the tracker, all years
2,004
Of those, indexed in 2026
49
Added in October
9
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 17 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.

4,911 results · Healthcare disclosures. Clear filters

Critical1 Sep 2026
Organisation not named
Healthcare · 727,000 records
The disclosure as indexed does not name the organisation.
French hospital breach exposed 727,000 patient and contact records; CNIL fined €500,000
1 Sep 2026
High1 Sep 2026
Elixir Medical
Healthcare · Records not stated
Breach exposed SSNs, financial details, and PHI/PII of employees and dependents
1 Sep 2026
Critical1 Sep 2026
Breach
Healthcare · 727,000 records
Breach exposed 727,000 patient and contact records, resulting in €500,000 CNIL fine
1 Sep 2026
Critical1 Sep 2026
McKesson
Healthcare · 284,000,000 records
ShinyHunters extortion group claimed theft of 284 million records
1 Sep 2026
High1 Sep 2026
Luminis
Healthcare · Records not stated
Healthcare cybersecurity incident affecting Anne Arundel County hospital
1 Sep 2026
Critical1 Sep 2026
Organisation not named
Healthcare · 727,000 records
The disclosure as indexed does not name the organisation.
French hospital breach exposed 727,000 patient and contact records
1 Sep 2026
High1 Sep 2026
xHealth
Healthcare · 118,000 records
Practice management and EHR software provider breach exposed 118,000 individuals' data
1 Sep 2026
Critical1 Sep 2026
AdaptHealth
Healthcare · 4,099,999 records
4.1 million people impacted; personal, health, and insurance information stolen
1 Sep 2026
Critical1 Sep 2026
McKesson
Healthcare · 284,000,000 records
Data breach with 284 million records stolen by ShinyHunters extortion group
1 Sep 2026
High1 Sep 2026
Novocure
Healthcare · Records not stated
Cyberattack exposed US patient records in oncology firm systems
1 Sep 2026
Critical1 Sep 2026
Breach
Healthcare · 727,000 records
Breach exposed 727,000 patient and contact records, resulting in €500K CNIL fine
1 Sep 2026
Critical1 Sep 2026
McKesson
Healthcare · 284,000,000 records
Data breach confirmed with 284 million records stolen including PII and PHI by ShinyHunters
1 Sep 2026
High1 Sep 2026
Elixir Medical
Healthcare · Records not stated
Employee and dependent data breach exposing SSNs, financial details, and PII
1 Sep 2026
Critical1 Sep 2026
McKesson
Healthcare · 284,000,000 records
Data breach confirmed with 284 million records stolen by ShinyHunters including PII and PHI
1 Sep 2026
High1 Sep 2026
Elixir Medical
Healthcare · Records not stated
Data breach exposing SSNs, financial details and PII of current and former employees and dependents
1 Sep 2026
Critical1 Sep 2026
Breach
Healthcare · 727,000 records
Breach exposed 727,000 patient and contact records; CNIL fined €500,000
1 Sep 2026
Critical1 Sep 2026
Veradigm
Healthcare · 3,500,000 records
3.5M patient records stolen in ransomware attack
1 Sep 2026
High1 Sep 2026
Healthcare cybersecurity incident affecting hospital operations
Healthcare · Records not stated
Healthcare cybersecurity incident affecting hospital operations
1 Sep 2026
Critical1 Sep 2026
Veradigm
Healthcare · 3,500,000 records
3.5 million patient records stolen by Gentlemen ransomware gang
1 Sep 2026
High1 Sep 2026
Healthcare cybersecurity incident; cyberattack on hospital systems
Healthcare · Records not stated
Healthcare cybersecurity incident; cyberattack on hospital systems
1 Sep 2026
Critical1 Sep 2026
Organisation not named
Healthcare · 727,000 records
The disclosure as indexed does not name the organisation.
727,000 patient and contact records exposed; resulted in €500K CNIL fine
1 Sep 2026
Critical1 Sep 2026
Veradigm
Healthcare · 3,500,000 records
Patient data breach with 3.5 million records stolen by Gentlemen ransomware gang
1 Sep 2026
High1 Sep 2026
Luminis Health
Healthcare · Records not stated
Cybersecurity incident affecting Anne Arundel County hospital
1 Sep 2026
High1 Sep 2026
Elixir Medical
Healthcare · Records not stated
PHI and PII of current and former employees exposed including SSNs and financial details
1 Sep 2026
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