AT&T Now Lets Customers Lock Down Account To Prevent SIM Swapping Attacks (theverge.com)
(Wednesday July 02, 2025 @03:00AM (msmash)
from the moving-forward dept.)
AT&T has [1]launched a new Account Lock feature designed to protect customers from SIM swapping attacks. The security tool, available through the myAT&T app, prevents unauthorized changes to customer accounts including phone number transfers, SIM card changes, billing information updates, device upgrades, and modifications to authorized users.
SIM swapping attacks occur when criminals obtain a victim's phone number through social engineering techniques, then intercept messages and calls to access two-factor authentication codes for sensitive accounts. The attacks have become increasingly common in recent years. AT&T began gradually rolling out Account Lock earlier this year, joining T-Mobile, Verizon, and Google Fi, which already offer similar fraud prevention features.
[1] https://www.theverge.com/news/695916/att-account-lock-sim-swapping-attack
SIM swapping attacks occur when criminals obtain a victim's phone number through social engineering techniques, then intercept messages and calls to access two-factor authentication codes for sensitive accounts. The attacks have become increasingly common in recent years. AT&T began gradually rolling out Account Lock earlier this year, joining T-Mobile, Verizon, and Google Fi, which already offer similar fraud prevention features.
[1] https://www.theverge.com/news/695916/att-account-lock-sim-swapping-attack