In a significant security breach, AT&T has disclosed that hackers stole call and text records belonging to approximately 109 million customers, which is nearly all of its mobile subscribers. The breach, which occurred between April 14 and April 25, involved the theft of customer data from an online database linked to AT&T’s Snowflake account.
The compromised data includes customer phone numbers, call and text message quantities, total call durations, and specific records with cell site identification numbers. Sensitive personal details like names, Social Security numbers, and birth dates were not part of the exposed information. However, the breached logs contain adequate metadata for hackers to potentially discern the identities of affected AT&T customers.
AT&T has promptly notified the FBI and is collaborating with law enforcement agencies, including the U.S. Department of Justice (DOJ), to apprehend those responsible. One individual has already been arrested in connection with the investigation. The breach places AT&T among a growing roster of enterprises that have encountered security breaches after utilizing Snowflake’s cloud-based data warehousing and analytics platform.
While AT&T pledges to inform all affected customers through various channels, it is advisable for customers to proactively check their myAT&T accounts. Vigilance against phishing attempts and online fraud is crucial, as hackers may attempt to impersonate AT&T to deceive individuals into revealing sensitive information.
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The Federal Communications Commission (FCC) has also launched an ongoing investigation into the breach. AT&T shares were down 1.2% in early trading following the disclosure of the incident.
As more details emerge regarding this significant data breach and others akin to it, it is crucial for AT&T to take immediate steps to secure its customer data and prevent future breaches. Customers should remain vigilant and report any suspicious activity related to their accounts to the company and relevant authorities.