On Monday Iranian authorities and various Arab countries said that a malicious software called Flame had attacked it. The various governments ran an urgent inspection of all computer systems. Iran's MAHER Center said Tuesday that the Flame virus was the cause of substantial damage and that significant amounts of data had been lost. Iranian experts said that Flame was able to overcome 43 different anti-virus programs, and while no one knows who is behind the sophisticated virus- the bottom line, computer experts say, is that only a state could have developed such a complex virus. In Israel's first official comment on the Flame worm, Vice PM Boogie Ya'alon said that such steps were 'reasonable' in the wake of the Iranian threat.