The California-based health care chain reported that a data breach may have exposed the data of millions of Kaiser Permanente patients.
Kaiser said in a statement to McClatchy News that it has notified 13.4 million current and former patients about the breach. This healthcare chain is based in Oakland, California.
The online software may have inadvertently sent data to third-party vendors such as Google, Microsoft Bing, and X (formerly known as Twitter), the company said.
The data related to IP addresses, names, and information about when patients signed on to their accounts and how they navigated Kaiser's websites, according to the statement.
“These third-party transmissions do not include usernames, passwords, social security numbers, financial account information, or credit card numbers,” Kaiser said.
The company said in a statement that it has removed the infringing software from its site and is continuing to investigate the matter.
Kaiser is not aware of any misuse of the data but is notifying patients “out of an abundance of caution,” the company said.
Kaiser Permanente has 40 hospitals and 618 medical facilities in California, Colorado, the District of Columbia, Georgia, Hawaii, Maryland, Oregon, Virginia and Washington, according to the site.
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