T-Mobile under the microscope

Massachusetts Attorney General Maura Healey (D) on Tuesday announced that her office is undertaking an investigation into the recent data breach of T-Mobile that affected more than 50 million individuals.

The investigation is aimed at understanding if T-Mobile took the proper steps to secure customer data and whether the company has done enough following the breach to respond and notify customers.

“My office is extremely concerned about how this data breach may have put the personal information of Massachusetts consumers at risk,” Healey said in a statement Tuesday. “As we investigate to understand the full extent of what’s happened, we urge impacted consumers to take the necessary precautions to ensure their information is safe, and to prevent identity theft and fraud.”

The investigation comes a month after T-Mobile disclosed that the records of at least 40 million prospective and former customers and the data of more than 13 million current customers had been compromised through the use of “brute force” by an unknown malicious actor in July.