Millions impacted by data breaches at Blue Shield of California, mammography service and more
Jonathan Greig
April 23rd, 2025
Updated 4/24 at 9:15am with a statement from Google.
The sensitive healthcare information of millions in the U.S. has been leaked through data breaches that multiple insurance companies, clinics, hospitals and more reported recently.
The largest involves Blue Shield of California, which informed the U.S. Department of Health and Human Services (HHS) of an incident impacting 4.7 million people.
In breach notification letters and in a notice on its website, the insurer said that from April 2021 to January 2024, it used Google Analytics to internally track website usage of members who entered certain Blue Shield sites.
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