Iranian spies appear to be engaged in their most elaborate and persistent effort yet to dupe lawmakers, journalists and defense contractors into revealing email addresses, network logins and other information that could be used to collect intelligence. A three-year espionage campaign, believed to have originated in Iran, has used an elaborate scheme involving a fabricated news agency, fake social media accounts and bogus journalist identities to trick victims in the United States, Israel and elsewhere, according to iSight Partners, the company that uncovered the campaign. Using fake accounts on Facebook, Twitter, LinkedIn, YouTube and Google+, the attackers have built an elaborate universe of fake personas bolstered by secondary accounts all for the purpose of garnering the trust of their targets, according to a report issued by the company.