1. Hackers have stolen phone and SMS records for nearly all AT&T customers, according to a report by cybersecurity expert Brian Krebs. The breach was discovered by a security researcher who found a database containing the phone records of over 70 million AT&T customers, including call logs, text messages, and other sensitive information. The breach is believed to have occurred through a third-party vendor that had access to AT&T's customer data.

2. The stolen data includes detailed call logs and text message records, which could be used by cybercriminals for a variety of malicious activities, such as identity theft, phishing attacks, and extortion. The breach also raises concerns about the security practices of AT&T and its third-party vendors, as the company has a responsibility to protect its customers' sensitive information.

3. AT&T has acknowledged the breach and is working with law enforcement agencies to investigate the incident. The company has also stated that it is taking steps to enhance its security measures and protect its customers' data. However, the scale of the breach and the potential impact on millions of AT&T customers is a stark reminder of the importance of robust cybersecurity measures and the need for companies to carefully vet their third-party vendors.