Kaiser Permanente notifies 13.4 million members of data breach. City of Hope also reported breach

Key Facts

Health insurance giant Kaiser Permanente apologized to 13.4 million of its members that some of their search information may have been inadvertently transmitted to Google, other search engines and media platforms.
Users names could also have been transmitted and “information that could indicate a member or patient was signed into a Kaiser Permanente account or service, information showing how a member or patient interacted with and navigated through the website and mobile applications, and search terms used in the health encyclopedia,” according to the statement.
City of Hope, which includes medical facilities in California, Arizona, Illinois and Georgia, informed its members that somebody accessed their information and obtained copies of some files between Sept. 19 and Oct. 12 in 2023, the company announced in an advisory on April 2.
Health insurance information, medical records and information about medical history and associated conditions, could also have been stolen, along with unique identifiers to associate individuals with City of Hope, like their medical record numbers, the company said.