This is compelling information that will hopefully get people's attention.

The widespread use of zombie computers to commit crimes over the Internet presents a very real danger to law-abiding computer users.

This was a pretty astonishing number for us. We knew that it would be a high volume, but this was an even greater volume of spam than we had anticipated passing through one computer.

We believe there are tens of millions of zombie computers out there.

The only way to slow the spread of zombies and other online threats is by going after them as resolutely and in as many ways as possible.

The numbers were astonishing. Much higher than we expected.

The numbers were astonishing.

We're talking about criminal behavior here.

In the past two years we've seen what I would describe as an escalation in the use of zombies, ... and in just the past few months it's probably been more of a constant growth.