Jakarta (MidLand) – AT&T admitted that a data leak circulating online contained information of more than 7.6 million current customers and 65 million existing customers.
The company reset the security passcodes of affected active customers and said the leaked information “may include full names, email addresses, postal addresses, phone numbers, Social Security numbers, dates of birth, AT&T account numbers and passcode”.
AT&T is contacting affected customers via “email or postal mail” to let them know what data is included and what actions it is taking for customers in response.
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The company’s acknowledgment that the leaked data was real (the first reports of such a leak emerged in 2021) came only after TechCrunch alerted AT&T to the encrypted passcode vulnerability on Monday.
Passcodes are typically four-digit numeric PINs used for account security in phone calls with business support or in-store verification, and a security researcher’s analysis revealed it was “easy to crack.”
This FAQ states that customers can set up free fraud alerts from credit bureaus Equifax, Experian and TransUnion.
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According to AT&T, the data set “appears from 2019 or earlier and contains no personal financial information or call history.”
The company said it is working with “external cybersecurity experts to analyze the situation” and that so far there is “no evidence of authorized access” to its systems. This was broadcast by The Verge, Sunday.
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Translator: Fathur Rochman
Publisher: Siti Zulaikha
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