Did The U.S. Cyber Attack against Iran Succeed?

US media reported Washington launched cyber attacks against Iranian missile control systems and a spy network after Tehran downed an American surveillance drone on June 20

AFP: US cyber attack on Iran shrouded in digital 'fog of war'

A claim by US officials that a retaliatory cyber attack ordered by the White House crippled Iranian missile launching systems will remain almost impossible to substantiate, experts say.

Citing unnamed sources, US media reported last week that the attack launched by the US Cyber Command disabled computers of the Iranian Revolutionary Guard unit responsible for shooting down an American surveillance drone over the Strait of Hormuz on June 20.

But Tehran denied the reports, saying "no succesful attack has been carried out" by the United States against the Islamic republic.

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WNU Editor: The Pentagon Is Not Talking. Iran is saying that the U.S. cyber attacks have failed .... Iran says U.S. cyber attacks failed, hints talks are possible (Reuters). In the meantime U.S. officials are warning that Iran is going to launch cyber attacks against U.S. targets .... DHS cyber director warns of surge in Iranian “wiper” hack attacks (Ars Technica).