The discovery of thousands of devices that could have wiped out communications in New York comes after a series of cyberattacks targeting the U.S.

Investigators say the system could have crippled cell towers, jammed 911 calls and flooded networks with chaos at the very moment the city was most vulnerable.

The discovery of thousands of devices that could have wiped out communications in New York comes after a series of cyberattacks targeting the U.S.