T-Mobile data breach exposes about 37 million accounts

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T-Mobile (TMUS) slips on cyber attack, "may incur significant expenses"

January 20, 2023 6:50 AM EST

Shares of T-Mobile (NASDAQ: TMUS) are continuing lower in Friday's pre-market session, after the company disclosed a cybersecurity accident late last night.

The wireless network operator said it "identified that a bad actor was obtaining data through a single Application Programming Interface (API)... More