Qedward writes "Iran is privately being blamed for a major cyberattack on the BBC that blocked access to its popular Persian TV service and disrupted the Corporation's IT using a denial-of-service attack. The multi-pronged March 2 attack took down much of the BBC's email, overloaded its telephone switchboard with automatic phone calls, and blocked a satellite feed for the BBC Persian station. BBC servers were also on the end of a DDoS. In an unprecedented tactic, the BBC has trailed a speech to be given this week to the Royal Television Society in which Director General Mark Thompson will mention the attacks in so