BOSTON (WHDH) - Massachusetts General Hospital announced Wednesday it suffered a privacy incident involving information stored by a third-party vendor.

According to the hospital, Patterson Dental Supply Inc., provides software that helps manage dental practice information for various providers, including MGH.

On Feb. 8, MGH learned that an unauthorized individual gained access to electronic files stored on the system and later confirmed the files contained some MGH dental practice information.

Law enforcement officials required any notification of the breach to potentially affected individuals be withheld while an investigation was conducted.

On May 26, officials gave permission to notify and MGH began to notify patients.

Leaked information included patients’ names, date of birth and Social Security and, in some instances, may have included date and type of dental appointment.

MGH began mailing letters to affected individuals June 29 and has established a dedicated call center to answer any questions.


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