California's Health Care Services Department is apologizing to nearly 50,000 Medi-Cal recipients whose Social Security numbers were disclosed on the outside of envelopes. Medi-Cal is the state's Medicaid program.
The department said that it was immediately notifying the affected beneficiaries. It says their Social Security numbers were inadvertently included on mailing address labels created by a vendor.
Agency Director David Maxwell-Jolly said the department is boosting its efforts to prevent such breaches in the future.
The Social Security numbers were included on letters mailed Feb. 1 to beneficiaries who receive adult day healthcare services.