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.

5,318
Disclosures in the tracker, all years
2,033
Of those, indexed in 2026
86
Added in October
20
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 22 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.

5,123 results · Healthcare disclosures. Clear filters

High1 Sep 2024
Organisation not named
Healthcare · 13,000 records
The disclosure as indexed does not name the organisation.
Patient records of ~13,000 patients exposed via cyberattack on law firm
1 Sep 2024
High1 Sep 2024
Healthcare Services Group
Healthcare · Records not stated
Cybersecurity incident in September 2024 exposed sensitive data, settled for $3M in litigation
1 Sep 2024
High1 Aug 2024
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Unauthorized email access from Aug 2024 to Nov 2024 exposed SSNs and medical records, undiscovered for 15 months
1 Aug 2024
High1 Aug 2024
Unauthorized email access
Healthcare · Records not stated
Unauthorized email access exposed SSNs and medical records for 15 months (Aug-Nov 2024)
1 Aug 2024
High1 Aug 2024
Unauthorized email access
Healthcare · Records not stated
Unauthorized email access exposed SSNs and medical records for 15 months (Aug-Nov 2024)
1 Aug 2024
High1 Aug 2024
Unauthorized email access
Healthcare · Records not stated
Unauthorized email access exposed SSNs and medical records from Aug 2024 to Nov 2024, undiscovered for over a year
1 Aug 2024
Medium3 Jul 2024
Mercy Medical Center (Baltimore)
Healthcare · 54,000 records
54K patient records exposed
3 Jul 2024
High1 Jul 2024
Government-run healthcare testing lab network battling ransomware attack
Healthcare · Records not stated
Government-run healthcare testing lab network battling ransomware attack
1 Jul 2024
High1 Jul 2024
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
South Africa's government healthcare lab network impacted by ransomware attack
1 Jul 2024
Critical1 Jul 2024
Government-run healthcare laboratory network
Healthcare · Records not stated
Government-run healthcare laboratory network hit by ransomware attack
1 Jul 2024
Critical1 Jul 2024
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack on South Africa's government-run healthcare testing laboratory network
1 Jul 2024
Critical1 Jul 2024
MCBS
Healthcare · 1,200,000 records
Medical business management company breach affecting 1.2 million individuals
1 Jul 2024
High15 Jun 2024
Pacific Alliance Medical Center
Healthcare · 267,000 records
267K patient records exposed in ransomware
15 Jun 2024
Critical6 Jun 2024
Rite Aid
Healthcare · 2,200,000 records
2.2M customer pharmacy records exposed
6 Jun 2024
High5 Jun 2024
MedStar Health (2024)
Healthcare · 183,000 records
183K patient records exposed in second incident
5 Jun 2024
Critical3 Jun 2024
Synnovis NHS Pathology
Healthcare · 900,000 records
Qilin ransomware disrupted blood testing for London hospitals, 3,166 appointments cancelled
3 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
Bedfordshire Hospital
Healthcare · Records not stated
Patient names, NHS numbers, and test results exposed in cyber attack
1 Jun 2024
High1 Jun 2024
Partnered Health Clinics (Australia)
Healthcare · Records not stated
Cyber-attack exposed Medicare numbers, treatment details, and pathology results
1 Jun 2024
Critical1 Jun 2024
PEAR ransomware attack
Healthcare · 1,260,000 records
PEAR ransomware attack exposed 1.26 million patient records at healthcare billing and practice management company
1 Jun 2024
High1 Jun 2024
Group Health Cooperative
Healthcare · 530,000 records
530K patient records exposed
1 Jun 2024
Medium21 May 2024
Dameron Hospital
Healthcare · 64,000 records
64K patient records exposed in data breach
21 May 2024
Critical16 May 2024
MediSecure (Australia)
Healthcare · Records not stated
E-prescriptions provider breach, 12.9M Australian patient prescription records stolen
16 May 2024
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