Sector

Data breaches in healthcare

754 organisations in healthcare with a confirmed or reported breach on the tracker, newest first.

Last 30 days: 42
2026 so far: 444
On record: 754
Median days to tell: 182

From the day a breach began to the day it was first reported, a median of 182 days, over the 545 breaches in this sector whose notice gives a start date.

What was taken most often

Health information265
ID numbers151
Names138
Dates of birth107
Home addresses82
Card and bank details57

The number of breaches in which each kind of data was exposed.

The largest

The latest 300 breaches

Show 280 more

How the sector is decided

A sector is read from the organisation’s own name (“Mercy Hospital”, “First National Bank”, “Lincoln School District”) and from the register it filed with (every notice on the US health department’s breach portal is a health organisation’s). A name that says nothing has no sector, and a name can mislead now and then, so these figures are a floor. Found one in the wrong place? Tell us.

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From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Official registers · Corrections and changes · Accuracy audit · For journalists · Found a mistake? Tell us and we correct it.