Multiple sources told The Post that US intelligence agencies internally concluded Moscow was responsible for the attacks ...

Undercover US agents obtained a mysterious Russian weapon that could finally explain a baffling cluster of brain injuries suffered by American diplomats, spies, and military officers for nearly a ...

Drawing on more than 100 interviews with senior intelligence officials and other insiders in multiple countries, this exclusive account details how the US and Britain uncovered Vladimir Putin’s plans ...

A Kremlin loyalist has launched into a tirade on Russian state television, alleging that CIA operatives orchestrated the purported strike on Vladimir Putin's official compound. Moscow asserted that a ...

Russia is reportedly sharing intelligence on US military assets in the Middle East with Iran, potentially aiding Tehran's targeting of American forces. This alleged assistance, detailed by officials, ...

US intelligence agencies have found no evidence to support Russia’s claim that Ukraine tried to assassinate President Vladimir Putin in a recent drone operation, according to The Wall Street Journal ...

Aldrich Ames, a former counterintelligence officer for the CIA who gained notoriety as a double agent for the Soviet Union and later Russia, has died. He was 84. Ames, who was serving a life sentence ...

Breaching protocol, a Russian official let a name slip during an interview with Interfax, the state news agency. The interview was with a representative of the FSB, the Russian security agency, and ...