Kaiser health insurance leaked patient data to advertisers

Health insurance giant Kaiser has announced it will notify millions of patients about a data breach after sharing patients’ data with advertisers.

Kaiser said that an investigation led to the discovery that “certain online technologies, previously installed on its websites and mobile applications, may have transmitted personal information to third-party vendors.”

In the required notice with the US government, Kaiser lists 13.4 million affected individuals. Among these third-party ad vendors are Google, Microsoft, and X. Kaiser said it subsequently removed …

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