Five major US telcos are vulnerable to 'SIM swapping' attacks
A study conducted by Princeton has found that five major US telcos are vulnerable to "SIM swapping" attacks.
SIM swapping is an increasingly common attack whereby a fraudster persuades a customer’s operator to port their number to a new SIM. In doing so, the fraudster can often access that person’s accounts using two-factor authentication.
The researchers from Princeton each signed up for 10 prepaid accounts on AT&T, Verizon, T-Mobile, US Mobile, and Tracfone.
Armed with a total of...