The investigation uncovered more than 300 co-located SIM servers and 100,000 SIM cards across multiple sites. One of the locations was reportedly in Greenwich.

The U.S. Secret Service said the attack would've blocked cell service for millions of people if it were successfully carried out.

This week's foiled SIM-card plot in New York should be read as both a relief and a lesson. The boots on the ground from the Secret Service, FBI, and local partners deserve absolute praise. Their ...

Bad actors using SIM card servers and thousands of cards can send anonymous threats and conduct attacks such as disabling ...