A recent leak of classified documents from Russia’s Federal Security Service (FSB) has exposed a deep undercurrent of mistrust between Moscow and Tehran, challenging long-held assumptions about their strategic partnership.
The files, obtained by The Insider — a Russian dissident media outlet banned domestically — suggest Iran has been conducting widespread espionage activities inside Russia. These reportedly include the recruitment of Russian scientists, infiltration of research institutions, and the theft of military and nuclear technologies. Iranian operatives are said to have used business delegations and diplomatic credentials as cover to smuggle sensitive information out of the country.








