Understanding your Supplemental to June 15, July 20, and August 25, 2023 notices: Harvard Pilgrim Healthcare (“Harvard Pilgrim”) data breach notification letter
If a Supplemental to June 15, July 20, and August 25, 2023 notices: Harvard Pilgrim Healthcare (“Harvard Pilgrim”) letter arrived in your mailbox, here is what it means, why you received it, and the free steps you can take right now.
Why you received this letter
Harvard Pilgrim Healthcare has submitted a supplemental data breach filing in Delaware, dated August 7, 2026. This document provides additional information related to an earlier security incident previously communicated in 2023, indicating ongoing developments regarding personal information.
What to do after the letter
Confirm the notice is genuine
A legitimate Supplemental to June 15, July 20, and August 25, 2023 notices: Harvard Pilgrim Healthcare (“Harvard Pilgrim”) notice references the specific incident reported to the DE Attorney General and describes which categories of your information were involved. Compare the letter against the public filing before acting on any links or phone numbers it contains.
Keep the letter — it is your proof of connection
The notification letter is the document that ties your personal information to this incident. Keep the original and photograph it. If you later request a case review, this letter is the strongest evidence that you were among the affected individuals.
Protect your accounts and credit
Depending on what was exposed, consider a free credit freeze with all three bureaus, new passwords for reused credentials, and monitoring of financial statements. These steps are free and do not require you to wait for anyone's permission.
Check the record against the public filing
You can verify the Supplemental to June 15, July 20, and August 25, 2023 notices: Harvard Pilgrim Healthcare (“Harvard Pilgrim”) incident against the filing reported to the DE Attorney General. This registry summarizes what was filed; it does not provide legal advice.
This page summarizes a data breach reported to the DE Attorney General for informational purposes. DataBreachCaseFile.com is a neutral reference registry and does not provide legal advice.