A Secret Service investigation found a cellular device network in the New York region that officials say could have been used to conduct telecommunications attacks.

A Secret Service unit set out to unmask the layers of burner phones, changing phone numbers and SIM cards that were swatting American officials. It ended with the largest seizure of SIM servers and ...

Early analysis shows the network was used for communication between foreign governments and individuals known to U.S. law enforcement.

Agents discovered electronic devices in five locations in and around the city that could be used to disable cellphone towers. The system could also be used for criminal activities.

U.S. Secret Service Director Sean Curran and Acting I.C.E. Director Todd Lyons show 'My View with Lara Trump' around their joint intelligence and operations center in New York City.

An illegal network of 100,000 SIM cards that could have crashed New York’s communications systems has been seized by the US Secret Service during the United Nations General Assembly.

The U.S. Secret Service announced it has disrupted a network in New York City that they say could have shut down telecom services in the tri-state area.

The devices were mainly within 35 miles of the U.N. General Assembly now underway in New York, increasing the urgency.

Harold Adrian Russell "Kim" Philby was recruited by Russian intelligence in the 1930s. He joined Britain's Secret Intelligence Service, known as MI-6, during the Second World War, rising through the ...

The U.S. Secret Service dismantled a threat to national cell service on Tuesday at multiple sites in New York City concentrated within 35 miles of the United Nations General Assembly where world ...

LONDON — The high-security headquarters of Britain’s MI6 spy agency was hit by a “small missile” Wednesday night, causing damage to the building but no casualties, police said. Alan Fry, head of the ...