TELEPHONE AND DATA SYSTEMS, INC.

Telephone and Data Systems, Inc. experienced an external system breach on January 20, 2021, which was discovered on June 2, 2021. The breach affected 9 Maine residents, compromising their names and Social Security numbers. Affected individuals were notified on July 2, 2021, and offered 24 months of credit monitoring services through Experian.

Morgan Stanley, via its third-party administrator for Telephone and Data Systems (TDS), notified New Hampshire authorities of a data security incident involving a vendor. The vendor suffered a breach in January 2021, where an unauthorized individual obtained encrypted files and the decryption key. Data exposed included names, addresses, DOBs, and SSNs. Morgan Stanley discovered the impact in May 2021. TDS mailed notifications on July 2, 2021, offering 24 months of credit monitoring via Experian.

Telephone and Data Systems, Inc reported a data breach to the Indiana Attorney General. The breach occurred on 2021-01-20 and was reported on 2021-06-24. 4 Indiana residents were affected. 99 individuals affected in total.

Telephone and Data Systems, Inc. reported an external system breach (hacking) occurring on January 20, 2021, discovered on June 2, 2021. The incident affected 99 individuals, including 9 Maine residents. Personal information acquired included names and Social Security Numbers. The company provided written notification and offered 24 months of credit monitoring through Experian.

Telephone and Data Systems, Inc. reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2021-06-23. 1 Massachusetts residents were affected. The report records the breach type as electronic.