A thwarted plot to cripple the telecommunications system in New York was bigger than investigators first realized, sources ...

Secret Service seized 300 SIM servers and 100,000 SIM cards that could have shut down the cellular network in New York.

Investigators warn the system could have blacked out cellular service in New York during the U.N. General Assembly.

Agents discovered electronic devices in five locations in and around the city that could be used to disable cellphone towers.

A man in a suit and blue tinted sunglasses was detained by the Secret Service after reportedly scaling a fence at the White ...

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

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

A Secret Service unit set out to unmask the layers of burner phones, changing phone numbers and SIM cards that were swatting ...

ATLANTA — Agents with the U.S. Secret Service recently partnered with local law enforcement agencies to search Georgia businesses for card skimmers. Throughout Atlanta and Columbus, agents visited 542 ...

The Secret Service told Newsweek it takes all threats seriously as it responded to a video circulating on social media in which a man appeared to threaten U.S. President Donald Trump.

WASHINGTON — The Secret Service failed to detect a Glock handgun in a guest’s bag that agents manually searched at President Trump’s Virginia golf club while the commander in chief was on site late ...