Thousands of soldiers, civilians and contractors operate under false names, on the ground and in cyberspace. A Newsweek investigation of the ever-growing and unregulated world of "signature reduction."
Will we wake up one day and find that China has been reading our mail? Losing our technological edge could have major security implications for the U.S.
Candace Marie Claiborne accepted tens of thousands of dollars in cash and gifts in exchange for internal State Department documents.
The radical approach to turncoats has split the intelligence community. "Don't think I didn't know that people would choke on this," says David Charney, a CIA-connected psychiatrist.
Hans-Georg Maassen suggested that a video showing far-right violence against migrants was fake.
Two Russian men identifying themselves as the suspects in the poisoning of an ex-Soviet agent in the English countryside said they were just sightseeing.
Operatives are installing malware that could give them remote control of parts of the country's power network.
CIA spies are carrying on their work, but many veterans worry secret operations will be damaged—or worse.
The government is also considering a proposal to extend the length of time a child can be used as a spy.
The Kremlin will allow access to its 12 officers indicted for election meddling but it wants to launch its own probe against American diplomats and the White House has not ruled it out.
Gudrun Burwitz was a committed Nazi until her death last month.
The U.S. government added three Russians and five companies said to be linked to Moscow's security forces.
Here's what happened when a U.S. Army intel officer returned to Vietnam to track down an enemy spy after the war.
"We also provide the experience of the tastes and smells, everything relating to Iran as a country, its citizens," Hanna Jahanforooz, an Iranian-born instructor explained.
The head of Russia's security council blamed a wide range of groups for implanting "destructive views" in the minds of the youth.
Fadi Mohammad al-Batsh, 35, was shot dead by motorcycle gunmen in a suburb of Kuala Lumpur.
State Department spokeswoman Heather Nauert said Russia was like a beast with "long arms" and "lots of tentacles."
Iranian hackers are often underrated, but they are probably among the best in the world.
Investigators did not identify which nerve agent was used on the pair, but the best-known nerve agents are sarin and VX.
The president also thanked his security services for keeping Russia's new generation of weapons secret.
Carter Page, an adviser to the Trump campaign, had multiple meetings with a Russian spy.
Iran and its proxies have a long history of targeting Jewish communities in Europe and the West, experts warn.
The wife of an accused Indian spy was allowed to visit her husband in Pakistan on Monday, but her shoes vanished during the visit.
Ukraine and Russia's relationship has reached its lowest point since the collapse of the Soviet Union.