So what happened was that an infected machine went online.

So there's 1,295 individual infected machines in 103 countries.

Britain, with 15 percent of the infected machines, was a distinct second.

I think this wouldn't work since it is reasonable to assume that most infected machines are not updated frequently or at all.

The problem is those people for seven months have been running infected machines.

One, Network Associates, said customers had reported more than 100,000 infected machines.

How can any program running on an infected machine be trusted?

The million or so infected machines remain in that state, with their owners most likely oblivious.

Most times these are sent automatically from an infected machine.

He added, however, that a single infected machine could cause significant disruption throughout a network of computers.