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Millions of T-Mobile customers exposed in Experian breach

Experian Plc, the world’s biggest consumer credit monitoring firm, on Thursday disclosed a massive data breach that exposed sensitive personal data of some 15 million people who applied for service with T-Mobile US Inc. Connecticut’s attorney general said he will launch an investigation into the breach. Experian said it discovered the theft of the T-Mobile customer data from one of its servers on Sept. 15.