The head of Britain’s domestic intelligence agency, MI5, said last month the U.K. is facing a “staggering rise” in attempts ...

"Unfortunately, when something bad happens, it is often claimed to be of Russian origin," a Russian official told Newsweek.

The top diplomats of the United States, South Korea and several other countries expressed "grave concerns" over the ...

Federal agencies say the fake videos bring the risk of inciting violence, including toward election officials.

The open-ended crisis in the Middle East has begun to squeeze the Pentagon, fueling unease over the U.S. military’s ability ...

A U.S.-led statement approved by 10 of the 15 U.N. Security Council members condemned a recent North Korean intercontinental ...

European states do appear to be reprioritizing their collective security and capabilities, particularly as they face a ...

While Democrats in their divisive closing message are using “name calling” (racist, misogynist, Fascist) and hyperbole ...

U.S. intelligence and law enforcement officials are warning that Russia is intensifying its already robust effort to subvert ...

The UN General Assembly voted overwhelmingly last week in favor of launching a two-year study on the effects of nuclear war—the first such expert study ...

Russia is responsible for an operation aimed at igniting fires on cargo or passenger aircraft bound for North America, The ...