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.
5,582
Disclosures in the tracker, all years
2,082
Of those, indexed in 2026
146
Added in October
21
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 31 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
5,552 results · Healthcare disclosures. Clear filters
Medium22 Apr 2020
22 Apr 2020
Medium21 Apr 2020
21 Apr 2020
High20 Apr 2020
MedStar Health
Healthcare · 183,000 records
183K patient records exposed in email compromise
20 Apr 2020
High17 Apr 2020
Nuvance Health
Healthcare · 314,000 records
314K patient records exposed in phishing / email compromise
17 Apr 2020
High15 Apr 2020
Gateway Health Plan
Healthcare · Records not stated
100K member records exposed in data breach
15 Apr 2020
Critical11 Apr 2020
Magellan Health
Healthcare · Records not stated
1.7M member records exposed in social engineering / ransomware attack
11 Apr 2020
High9 Apr 2020
Florida Orthopaedic Institute
Healthcare · 640,000 records
640K patient records exposed in ransomware attack
9 Apr 2020
Critical1 Apr 2020
UnityPoint Health
Healthcare · 1,400,000 records
1.4M patient records exposed in phishing attack
1 Apr 2020
High28 Mar 2020
28 Mar 2020
Medium16 Mar 2020
Sentara Health Plans
Healthcare · Records not stated
73K member records exposed in email breach
16 Mar 2020
High6 Mar 2020
6 Mar 2020
High18 Feb 2020
18 Feb 2020
Medium12 Feb 2020
12 Feb 2020
Critical4 Feb 2020
Anthem Inc (BCBS)
Healthcare · 78,800,000 records
78.8M records, largest healthcare breach in US history at the time
4 Feb 2020
Medium29 Jan 2020
Midwest Transplant Network
Healthcare · 17,000 records
17K patient records exposed in Maze ransomware
29 Jan 2020
High24 Jan 2020
Beaumont Health
Healthcare · 112,000 records
112K patient records exposed in phishing incident
24 Jan 2020
High22 Jan 2020
Ambry Genetics
Healthcare · 233,000 records
233K patient genetic testing records exposed in email breach
22 Jan 2020
Critical15 Jan 2020
Inmediata Health Group
Healthcare · 1,570,000 records
1.57M patient records exposed via website misconfiguration
15 Jan 2020
High2 Jan 2020
Health Share of Oregon
Healthcare · Records not stated
654K member records stolen in laptop theft
2 Jan 2020
Critical1 Jan 2020
Premera Blue Cross
Healthcare · Records not stated
11M member records including SSNs and medical claims
1 Jan 2020
Medium2 Dec 2019
Scarborough Health Network
Healthcare · 4,800 records
Employee accessed records of 4,800 patients without authorization
2 Dec 2019
Critical28 Oct 2019
LifeLabs (BC/ON)
Healthcare · 15,000,000 records
15M patient records, largest healthcare breach in Canadian history
28 Oct 2019
Critical28 Oct 2019
LifeLabs (15M Records)
Healthcare · 15,000,000 records
15M patient lab records stolen, largest Canadian healthcare breach, names, DOBs, health card numbers
28 Oct 2019
High3 Sep 2019
Demant (Denmark)
Healthcare · Records not stated
Ransomware hit Danish hearing aid manufacturer, estimated $95M loss
3 Sep 2019
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