Blue Cross/ Blue Shield of Massachusetts Data Breach

Friday, October 27, 2023
National Grid and Local 97 have been notified of a data breach affecting one of Blue Cross/ Blue Shield of Massachusetts’ subcontractors, NASCO. This breach has affected numerous National Grid employees, dependents, and retirees. The compromised information may have included names, demographic information, phone numbers, health insurance numbers and other medical information.
NASCO will begin notifying affected BCBSMA members via mail beginning October 27th. If you receive a letter from NASCO in the coming days, please review the recommended actions. More information can be found in BCBSMA’s press release:
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