AT&T, one of the largest telecommunications companies in the world, has recently alerted around 9 million of its customers of a data breach that occurred as a result of a vendor hack. The breach was first discovered in February 2023, and AT&T immediately launched an investigation into the incident.

According to AT&T, the breach was caused by a third-party vendor who was granted access to AT&T customer data. The vendor, whose identity has not been revealed, was targeted by a sophisticated cyberattack that enabled hackers to gain unauthorized access to customer data.

“Credit card numbers, Social Security numbers, account passwords, and other sensitive personal data were not included in the data. AT&T informed the impacted customers.”

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The affected data includes names, addresses, phone numbers, email addresses, account numbers, and Social Security numbers. However, AT&T has stated that no financial information, such as credit card numbers, was compromised.

AT&T has taken immediate action to contain the breach and has implemented additional security measures to prevent further unauthorized access to customer data. The company has also reported the incident to law enforcement and is working closely with them to investigate the matter further.

In addition to notifying the affected customers, AT&T is also offering free credit monitoring and identity theft protection services to those impacted by the breach. The company has urged its customers to remain vigilant and to report any suspicious activity related to their accounts.

This data breach serves as a reminder of the importance of cybersecurity and the need for businesses to take proactive steps to protect customer data. Third-party vendors have increasingly become a target for hackers, and companies need to conduct thorough security assessments and implement appropriate measures to prevent such breaches from occurring.

The Incident reported to law enforcement.

The incident also highlights the need for consumers to take steps to protect their personal information, such as regularly monitoring their credit reports, setting up alerts for suspicious activity, and using strong passwords and two-factor authentication.

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As mandated by the Federal Communications Commission, we have notified federal law enforcement about the unauthorized access to your CPNI, states AT&T in the letters notifying you of the breach sent from [email protected] and were originally noticed by

“Our notification to law enforcement does not specifically mention your account; it merely notes that an unlawful entry took place,” it says.

Suppose AT&T decides to employ CPNI data sharing for third-party vendor marketing in the future. In that case, customers are urged to turn it off on their accounts by submitting a CPNI Restriction Request to minimize exposure risks.

An email requesting more information about the incident’s precise data exposure and the compromised vendor has yet to receive a response from an AT&T spokesman.

In conclusion, the AT&T data breach is a concerning incident that has impacted millions of customers. However, the company’s prompt response and efforts to notify and assist affected customers are commendable. This serves as a reminder for both businesses and consumers to remain vigilant and take necessary steps to protect sensitive information in an increasingly digital world.