Lord Ashdown: Cyber-terrorism 'a big threat' Summary: The former leader of the Liberal Democrats explains the need for an internationally co-ordinated response to combat cyber-terrorist threats By Tom Espiner | November 28, 2008 -- 12:06 GMT (04:06 PST) Follow @tomespiner Loading... Please wait. The UK dependence on computer systems leaves the country vulnerable to cyber-terrorist attack, according to former leader of the Liberal Democrats, Lord Ashdown. Topic: Security Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.