Russian spycatchers are scrambling to figure out how long an accused double-agent was working for the CIA after a ‘dramatic’ discovery about his shady past.

Sergei Mikhailov faces treason changes in Moscow evidently linked to leaks giving US investigators the knowledge that Vladimir Putin‘s intelligence services hacked and meddled in the American presidential election.

The colonel – a department head in the FSB security agency’s Center for Information Security, pictured here – was arrested in December during a meeting of senior officers at the agency’s Lubyanka HQ,and could face 20 years in jail.

A bag was placed over his head and he was frogmarched from the room in handcuffs.

Mikhailov – apparently a high level cyber asset – was originally recruited by the Americans during a vacation in a Mediterranean country, according to TV channel REN, citing security service sources…