Ciaran Martin

Ciaran Martin is Professor of Practice at the Blavatnik School, University of Oxford, and the former head of the National Cyber Security Centre.

The heist: nobody is safe from Russia’s digital pirates

In April, the Harris network of London schools was held to ransom by hackers. ‘The first thing I did was panic,’ said Sir Dan Moynihan, the chief executive. It wasn’t simply that their computers didn’t work; many of the 50 schools couldn’t function. Some couldn’t open because their internet-controlled doors were jammed shut. A demand