Computer security veteran Philip Le Riche shares his thoughts on the possibility of cyberwarfare.
One company lost £800m as a result of hostile state cyber attack, says British Security Service chief.
Apparently the the only thing stopping countries from using the internet to destroy their enemies is the risk of a military counter-attack.
And terrorists? Well, they just can’t get their hands on the right internet tools..
US Deputy Defense Secretary William Lynn is put on the spot.
Did the US write the Stuxnet worm or not?