Clearly there are some things about WikiLeaks... the material is in part very interesting although none of it is a real game-changer. I think if I was an American I'd be rather proud that American diplomats are quite assiduous in the way that they chronicle issues. Of course the impact has been that the whole culture of sharing is going down the tube.

The criminal justice system - although this applies less to the U.S., where rehabilitation is not seen as a valuable contribution to criminal justice - in Europe where rehab is supposed to be integral, we have no way of rehabilitating skilled hackers. On the contrary what we do is we demonize them and continue to do so after they come out of jail because we restrict their access to computers by law. Crazy world, crazy people.

The internet is fracturing into a series of huge country-based intranets, in which governments define, in the name of security, what is legitimate personal and intellectual communication, and what is not.

The issue of cyber-security, cyber-crime, and cyber-malfeasance has an impact on a whole range of issues, not the least of which is civil liberties, political activity, and so on and so forth.

It's great that the Internet can enhance and speed up our communications and that computers can do all the things they do. It's fabulous. At the same time, it changes our priorities. For example, before I would always remember people's telephone numbers and now I don't know anyone's number. So what happens if computer systems go down but you still have landlines? Well, I couldn't call anyone because I don't know anyone's number.

The attack on the law firms and attacks like that are industrial espionage, searching for copyrighted materials to lift and so on; it's not quite the same as cyber-warfare. They are regarded as related. The Chinese are trying to steal an economic march on the West, which is a consequence of the fact that we outsourced all of our manufacturing to China in the 1990s.

I think that we're now deep into a struggle for control over the Internet and there are various actors - state, corporate, civic, criminal and military. The great genius of the Internet is its interconnectedness, but this is also what makes it an incredibly difficult problem when things start to go wrong with it and when people exploit for their own purposes.