Kaiser Permanente

The Kaiser Permanente organization reported a massive data breach impacting 13.4 million members, making it the largest healthcare-related data breach in 2024. Personal information, including member names, IP addresses, sign-in statuses, and interaction data with Kaiser's website and apps, was transmitted to third-party advertisers such as Google, Microsoft, and X (Twitter). While no passwords, Social Security numbers, or credit card info were compromised, the sharing of significant amounts of other sensitive data has raised serious privacy concerns.

Source: https://www.hcinnovationgroup.com/cybersecurity/article/55021547/kaiser-permanente-data-breach-might-affect-134m-members

"id": "kai349092524",
"linkid": "kaiser-permanente",
"type": "Breach",
"date": "4/2024",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"