Iran is justified in doing the same thing in return. The chemical weapons program of the 1980s was one of the first examples. The recent spate of attacks on Israelis appears to be retaliation for the assassinations of four Iranian nuclear scientists. Now the Islamic Republic has publicly claimed the right of retaliation for any cyber attacks on Iran. Intelligence Minister Heydar Moslehi (photo) recently stated that Iran would respond tit-for-tat to any cyber attacks upon it from abroad.