United States of America
Harvard Pilgrim Health Care is an organisation in Massachusetts. It appears on the Massachusetts Attorney General breach-notification register and the Washington State Attorney General breach-notification register with 4 confirmed incidents (6 filings); the most recent notice was filed on May 9, 2025.
Data as of September 6, 2026.
Required under M.G.L. c. 93H. Notice to the Attorney General is required for a breach affecting any number of Massachusetts residents' personal information -- the statute sets no minimum count.
Note: the count is Massachusetts residents only, not a total.
The same incident was filed separately with 3 jurisdictions within a few days of each other (DE, WA and IA) — shown here as one incident.
IA AG breach notification: an unknown number of Iowa residents affected
sourceWA AG breach notification: 8,358 Washington residents affected
sourceDE AG breach notification: an unknown number of Delaware residents affected
sourceDE AG breach notification: an unknown number of Delaware residents affected
sourceRequired under RCW 19.255.010. Notice to the Attorney General is required when a breach affects more than 500 Washington residents.
Note: the count is Washington residents only, not a total.