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T-Mobile US exposes some customer data – but don’t call it a breach

September 25, 2023

T-Mobile US has had another bad week on the infosec front – this time stemming from a system glitch that exposed customer account data, followed by allegations of another breach the carrier denied.

According to customers who complained of the issue on Reddit and X, the T-Mobile app was displaying other customers’ data instead of their own – including the strangers’ purchase history, credit card information, and address.

This being T-Mobile’s infamously leaky US operation, people immediately began leaping to the obvious conclusion: another cyber attack or breach.

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