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MonitoringCA AG filing · March 12, 2026

The Kaiser Foundation Health Plan Data Breach: Incident Facts and Free Case Review

Online tracking technologies transmitted member information to third-party vendors.

State
CA
Affected
13,400,000
Breach date
April 12, 2024
Reported
March 12, 2026

What may have been exposed

  • member names
  • IP addresses
  • health-related web activity

What to do if you were affected

Based on the categories of information reported in this filing, these steps can help limit the risk of identity theft and fraud.

  • Check for medical identity theft

    Review the Explanation of Benefits statements from your health insurer for services or claims you never received, which can signal misuse of your medical identity.

  • Stay alert to targeted scams

    Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.

  • Keep your notification letter

    Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.

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