From BBC News:
Criminals controlling millions of personal computers are threatening the internet’s future, experts have warned.
Up to a quarter of computers on the net may be used by cyber criminals in so-called botnets, said Vint Cerf, one of the fathers of the internet.
Technology writer John Markoff said: “It’s as bad as you can imagine, it puts the whole internet at risk.”
The panel of leading experts was discussing the future of the internet at the World Economic Forum in Davos.