In addition to sabotage, foreign intelligence agencies have continually targeted Iranian infrastructure for purposes of espionage, a fact made public to Iran through the intelligence disclosures of [Edward Snowden]. A former U.S. National Security Agency (NSA) worker, Snowden leaked a presentation on a tool known as Boundless Informant showing Iran to be one of the most highly surveilled countries in the world: billions of Iranian internet and telephone records have been collected by the intelligence agencies of the United States and its partners. In fact, Iran is so frequently surveilled that a Canadian espionage operation targeting Iran once stumbled across a French-run intelligence operation that had compromised the very same network.
@Snowden revealed to Iran that we were spying and surveilling them.
http:// carnegieendowment.org/files/Iran_Cyber_Final_Full_v2.pdf