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AT&T breach data resurfaces with new risks for customers

ID: ffa5a8c0-9aee-5619-bedf-be05b6efff50

STIX ID: report--ffa5a8c0-9aee-5619-bedf-be05b6efff50

Feed Name: Malwarebytes Blog

Threat Score
90/100

Date Published: 2026-02-03

Date Updated: 2026-04-28

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A newly circulated dataset reportedly containing ~176 million AT&T customer records (including up to 148M SSNs, >133M names/addresses, >132M phone numbers, ~75M DOBs, and >131M emails) increases risk of large‑scale phishing, SIM‑swap, account takeover, and identity theft; the report urges affected customers to enable 2FA, lock mobile accounts, monitor credit, and follow AT&T guidance.

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