Keypoints
- Wireless Lock prevents unauthorized changes to customer account information and phone number porting.
- The feature is now available to all AT&T customers after a limited rollout period.
- SIM swap attacks can lead to theft of calls, texts, and access to accounts like email and banking.
- Threat actors and insiders have been involved in conducting or facilitating SIM swap attacks.
- Other carriers like Verizon and T-Mobile have offered similar protections for several years.