Kaiser Permanente notifies millions of members about data breach

(KRON) — Millions of Kaiser Permanente members have potentially been impacted by a data breach, the company confirmed to KRON4 Monday. According to a statement from Kaiser, which is headquartered in Oakland, “certain online technologies, previously installed on its websites and mobile applications” may have transmitted personal information to third-party vendors.

Those vendors potentially include search engines Google and Microsoft Bing and social media platform X, formerly known as Twitter. Information was transmitted when members accessed Kaiser’s websites or mobile apps.

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According to Kaiser, information potentially transmitted in the data breach included:

  • Name

  • IP address

  • Information indicating whether a user was signed into a Kaiser Permanente account

  • Information showing how a member or patient interacted with or navigated its website and apps

  • Search terms used in Kaiser’s health encyclopedia

No usernames, passwords, Social Security numbers, financial account information or credit card numbers were transmitted in the breach, Kaiser said.

“Kaiser Permanente conducted a voluntary internal investigation into the use of these online technologies, and subsequently removed them from its websites and mobile applications,” Kaiser said in a statement. “In addition, Kaiser Permanente has implemented additional measures with the guidance of experts designed to safeguard against recurrence of this type of incident.”

Kaiser said it is unaware of any misuse of any member’s or patient’s personal information. The company is informing approximately 13.4 million current and former members of the data breach.

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