Ukrainian Security Service says two Russian FSB agents suspected of killing Colonel Ivan Voronych on July 10 have been ...

Ukraine's top military spy says the country has spies inside the Kremlin. The defense intelligence chief predicts 'wins' in war with Russia 'obvious to world community' by mid-August.

LONDON (Reuters) -Russia, Iran and China are behind a growing number of life-threatening operations in Britain including ...

Russia’s foreign intelligence service has accused Ukraine and the United Kingdom of working together on what it claims is a “false-flag” operation against a United States Navy warship in the Baltic ...

A senior Ukrainian security officer was gunned down in a residential parking lot in Kyiv on Thursday before his assailant ...

Russia has levied dozens of cyber espionage campaigns in 42 countries since it invaded Ukraine in February, according to a new Microsoft report. The report says those efforts have targeted ...

North Korea is now supplying as much as 40% of Russia’s ammunition for the war in Ukraine as the partnership between Pyongyang and Moscow deepens, according to the head of Ukrainian military ...

The National Security Agency said Wednesday it has detected a shift in Russian cyber operations against Ukraine, from destructive digital attacks to espionage. NSA Cybersecurity Director Dave ...

In October, authorities in Norway arrested an accused Russian spy under similar circumstances. ... Lithuania has endured a wave of online operations targeting Ukrainian refugees.

Espionage is a predatory business, and there’s blood in the water. Mr. Putin’s self-inflicted damage has done more to turn his own people against him than anything the West could have done.

After one year of war in Ukraine, the West’s exposure and the arrest of Russia’s spies are having an effect on the Kremlin’s ability to conduct espionage and covert operations. This ...

Russian government hackers have conducted multiple cyber spy operations on countries allied with Ukraine since Moscow's February invasion of that country, Microsoft said in a report on Wednesday.