A Ukrainian military spokesperson said the deployment signals that Russian forces are facing some trouble in Chasiv Yar.

Russian cyber espionage hackers are using a new malware strain dubbed "Lostkeys" in a targeted espionage campaign aimed at ...

From silent surveillance to political disappearances, Russia’s FSB operates deep in the shadows—protecting power by any means ...

Maksim Blinov / Sputnik via AP Russia's FSB—the country's main domestic security service succeeding the Soviet-era KGB—said on Saturday it had detained Ignat Kuzin, described by the agency as ...

Russia said that Ukraine was behind the blast which killed Gen Yaroslav Moskalik. Russia’ FSB said it has detained the man, a Ukrainian agent by the name, Ignat Kuzin. It explained that Kuzin ...

The Russian FSB has published a segment from the investigation of the commandant of the Sachsenhausen concentration camp, where approximately 100,000 people were murdered. The camp, established in ...

The Russian Federal Security Service (FSB) has reported that an alleged agent of the Ukrainian special services has been detained on suspicion of murdering Lieutenant General Yaroslav Moskalik, Deputy ...

Russian security forces say they have detained a Ukrainian spy accused of killing a senior Russian general in a car bomb attack in Moscow's suburbs on Friday. The FSB secret service said they had ...

Ukraine said Russia was attacking across the front line on Thursday, calling Russian President Vladimir Putin's order for a three-day truce, which he said would take effect Thursday morning ...

Russian special services have received instructions to organise terrorist attacks in several Russian oblasts during the 9 May celebrations aimed at blaming Ukraine and mobilising the population for ...

A U.K. court Monday handed down jail terms of up to 10 years to six Bulgarians convicted for belonging to a Russian espionage cell described as like something from a "spy novel." Fake passports ...