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Healthcare Data Breaches

Hospitals, clinics, insurers, and medical-IT vendors are the highest-value targets in cybercrime. Below is every healthcare-sector breach LeakTrace has indexed — patient records, HIPAA disclosures, ransomware victims, and supply-chain compromises.

98B+
Records Exposed
742
Incidents
94+
Countries
+104%
Breach Velocity YoY
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Healthcare Data Breaches (742 indexed)

medium · healthcare · Apr 29, 2026

Almost one year after discovery,

On April 28, Sandhills Medical Foundation in South Carolina notified the Maine Attorney General’s Office of a data breach that affected a total of 169,017 people, only 8 of whom are Maine residents. Their notificat

View incident → Original disclosure Indexed 3 days, 3 hours ago
critical · healthcare · Apr 27, 2026

Medtronic

Medical device giant Medtronic disclosed last week that hackers breached its network and accessed data in "certain corporate IT systems." [...]

View incident → Original disclosure Indexed 5 days, 3 hours ago
critical · healthcare · Apr 27, 2026

Medtronic

Medtronic confirmed a breach of its IT systems after ShinyHunters claimed the theft of over 9 million records. Medtronic confirmed a cyberattack on its corporate IT systems after the hacker group ShinyHunters claimed to

View incident → Original disclosure Indexed 5 days, 3 hours ago
critical · healthcare · Apr 19, 2026

Qilin’s 2024 attack on NHS

Long-term follow-ups are important, and DataBreaches is glad that Alexander Martin points out that at least one NHS Trust is still impacted by the Qilin ransomware attack on Synnovis in 2024. From his reporting: At South

View incident → Original disclosure Indexed 1 week, 6 days ago
medium · healthcare · Apr 17, 2026

Flawed Cisco update threatens to

Cisco admins are scrambling to patch a critical flash memory overflow vulnerability in over 200 Cisco Systems IOS XE-based models of wireless access points (APs), caused by a recent flawed software update. If the issu

View incident → Original disclosure Indexed 2 weeks, 1 day ago
critical · healthcare · Apr 11, 2026

Brockton Hospital still dealing

Yesterday, Bryan Lambert reported:  Health care providers at Brockton Hospital are preparing to work off paper, not computers, for the next two weeks as the health care hub deals with an ongoing cybersecurity incident. T

critical · healthcare · Apr 9, 2026

Weak at the seams

Before I ever held a security title, I was a software engineer implementing vertically integrated automation systems for industrial manufacturing, warehouse-scale conveyor networks, robotic material handling, physical in

View incident → Original disclosure Indexed 3 weeks, 2 days ago
medium · healthcare · Apr 9, 2026

Trump’s Personnel Agency Is

I posted the following article this morning over on PogoWasRight.org, but I have had so many people sending me links to stories about this news that I guess I should have posted it here, too, as a future data breach. by

View incident → Original disclosure Indexed 3 weeks, 2 days ago
critical · healthcare · Apr 9, 2026

Weak at the seams

Before I ever held a security title, I was a software engineer implementing vertically integrated automation systems for industrial manufacturing, warehouse-scale conveyor networks, robotic material handling, physical in

View incident → Original disclosure Indexed 3 weeks, 2 days ago
critical · healthcare · Mar 27, 2026

Cognizant TriZetto

3.4M patient health records including SSNs, insurance data, medical information exposed

View incident → Indexed 1 month ago