#USA #Cybersecurity #ATT #DataLeakage: "Phone giant AT&T has reset millions of customer account passcodes after a huge cache of data containing AT&T customer records was dumped online earlier this month, TechCrunch has exclusively learned.

The U.S. telco giant initiated the passcode mass-reset after TechCrunch informed AT&T on Monday that the leaked data contained encrypted passcodes that could be used to access AT&T customer accounts.

A security researcher who analyzed the leaked data told TechCrunch that the encrypted account passcodes are easy to decipher. TechCrunch alerted AT&T to the security researcher’s findings.

In a statement provided Saturday, AT&T said: “AT&T has launched a robust investigation supported by internal and external cybersecurity experts. Based on our preliminary analysis, the data set appears to be from 2019 or earlier, impacting approximately 7.6 million current AT&T account holders and approximately 65.4 million former account holders.”

“AT&T does not have evidence of unauthorized access to its systems resulting in exfiltration of the data set,” the statement said." https://techcrunch.com/2024/03/30/att-reset-account-passcodes-customer-data/