In Iranian official terminology, hostile countries are usually a reference to Israel and the United States. But the attempts at historic diplomacy suggested with Washington suggested the term was aimed at Israel.
Talks over Iran's nuclear program are scheduled to resume next week in Geneva amid hopes of new proposals on all sides after the exchanges between Iran and the U.S. during the recent U.N. General Assembly gathering, which included a phone conversation between President Barack Obama and Iran's new president, Hassan Rouhani. It was the highest-level dialogue between the countries since the 1979 Islamic Revolution.
Iran is urging the U.S. to ease sanctions in exchange for nuclear concession. But Iran has not publicly specified what measures it could take to satisfy Western concerns that its nuclear work could one day produce atomic weapons. Iran insists it only seeks reactors for energy and medical use such as cancer treatment.
Salehi also noted that Iran has upgraded its protective measures against cyberattacks that have "continued" over the past years.
In 2010, the powerful Stuxnet virus targeted Iran's nuclear facilities and other industrial sites, and Tehran has acknowledged the malicious software affected a limited number of centrifuges a key component in nuclear fuel production. But Iran has said its scientists discovered and neutralized the malware before it could cause serious damage.
Iran periodically announces the arrest of suspects charged with espionage or attempts to sabotage its nuclear facilities. But it normally does not release further details on their identities or fate.
In August, Iran said it arrested a man on charges of spying for Israel. The suspect allegedly passed intelligence to a security officer at the Israeli embassy in Thailand. Last week, Israel announced the arrest of an Iranian-Belgian citizen on suspicion of spying for Iran.