Cybersecurity experts are urging AT&T customers to ramp up their security measures, such as changing their passwords, following a data breach that impacted 73 million current and former accounts. Bob Huber, chief security officer of cybersecurity company Tenable, told FOX Business that "affected customers should change their passwords immediately and set up two-factor authentication where possible.
Customers can also use reputable services like "Have I Been Pwned" to see if their email or phone number is part of a data breach, Khan said. When you change your AT&T account password, remember to change any other account that uses the same password, Khan said. She also warned that customers need to "be wary of phishing attempts; never click on suspicious links or provide personal information in response to unsolicited communications.