Zero Days review – Alex Gibney's chilling cyberwar doc

Cyber attacks, warns Gibney, are not just 'hacking' but a complete offensive capability - and a new form of geopolitical dysfunction

The title of Alex Gibney's new documentary about cyberwar has something apocalyptic about it: a digital version of the Book of Revelations, perhaps. It's actually a technical term relating to malware developed in the last decade by the US and Israeli security services. Analysts nicknamed it "Stuxnet", though the intelligence officers themselves gave their baby the creepy codename "Olympic Games".