Although cyber attacks have caused billions of dollars in damage and affected the lives of millions, few if any can be characterised as acts of terrorism.

Systems are complex, so controlling an attack and achieving a desired level of damage may be harder than using physical weapons.

While the vast majority of hackers may be disinclined towards violence, it would only take a few to turn cyber terrorism into reality.

Everyone is a proponent of strong encryption.

We have never really had absolute privacy with our records or our electronic communications - government agencies have always been able to gain access with appropriate court orders.

I prefer leaving things to the market as much as possible.

Further, the next generation of terrorists will grow up in a digital world, with ever more powerful and easy-to-use hacking tools at their disposal.