Palomar Health Medical Group has warned patients that they may have been affected by an April 2024 cyberattack, and DaVita has learned that tracking tools on its website and mobile app may have sent user data to third-party vendors.

Palomar Health Medical Group Announces April 2024 Cyberattack

Palomar Health Medical Group, a provider of primary and specialty care to communities in North San Diego County, has informed patients about a recent cyberattack that exposed some of their protected health information. A security breach was detected on or around May 5, 2024, and immediate action was taken to prevent further unauthorized access to its systems. An investigation was launched to determine the nature and scope of the incident, which confirmed that hackers had access to its network from April 23, 2024, to May 5, 2024.

Palomar Health Medical Group said the attack “may have caused certain files to files to become unrecoverable,” which suggests that ransomware was used. Palomar Health Medical Group has confirmed that certain files were exfiltrated from its network and the review of those files is ongoing, as is the process of restoring the affected files. A full recovery of the affected systems was expected by July 1, 2024; however, the recovery process is taking longer than anticipated.

It is still not possible to tell exactly how many patients have been affected or the specific types of data that have been exposed or obtained in the attack; however, Palomar Health Medical Group has identified the categories of data involved. The compromised data varies from individual to individual and, based on the initial findings of the investigation, will include patient names in combination with one or more of the following: address, date of birth, Social Security number, medical history information, disability information, diagnostic information, treatment information, prescription information, physician information, medical record number, health insurance information, subscriber number, health insurance group/plan number, credit/debit card number, security code/PIN number, expiration date, email address and password, and username and password.

The breach has affected current and former patients of Palomar Health Medical Group and its affiliates Graybill Medical Group and Pacific Accountable Care. Individual notification letters will be mailed to the affected individuals when the file review is completed.

DaVita Notifies Patients About Tracking Technology Privacy Incident

DaVita Inc., a Denver, CO-based provider of kidney dialysis services, notified 67,443 patients on July 2, 2024, about a pixel-related data breach.  Pixels are online tracking technologies that are used on websites and mobile applications for recording visitor activity. DaVita explained that it learned on June 17, 2024, that tracking tools had been installed on its website health portal and Care Connect mobile application that they may have transmitted data to third-party vendors.

The types of information disclosed varied from individual to individual based on their interactions on the website and use of the mobile application. That information may have included usernames and third-party identifiers/cookies, employment status, patient classification/reference, information about the use of the app or pages visited on the website, and information indicating whether the user was signed into a DaVita account, but not the account password. For certain users, limited demographic information may also have been disclosed and, potentially, lab test names or lab test resources viewed on the website but no lab test results. The above types of information could be tied to an individual via their IP address and third-party identifiers, such as if a user was logged into their Google or Facebook account at the time. First and last names would only have been disclosed if they were used to create a username.

DaVita said it has removed all third-party tracking technologies that are not part of a HIPAA-compliant service and has implemented new policies and procedures and provided additional training to members of its workforce to prevent similar privacy breaches in the future. DaVita said it is not aware of any misuse of the disclosed information that is likely to result in financial or similar harm.

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