AT&T has updated the number of customers affected by a data breach, now stating that 51 million customers were impacted. Initially denying the breach, AT&T confirmed ownership of the leaked data after evidence surfaced that it belonged to AT&T and DirectTV accounts. The breach’s origin remains undisclosed by AT&T, which took nearly five years to verify and inform customers. In response, AT&T is offering identity theft protection and credit monitoring services, although the data has been circulating for years, raising the risk for affected customers.

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