Zombie PC Nation

Some interesting numbers from CipherTrust in a NYT article about zombie computers: An Army of Soulless 1’s and 0’s .

More than 170,000 computers every day are being added to the ranks of zombies, according to Dmitri Alperovitch, a research engineer at CipherTrust

Now given that some computers are cured of their infections, I’d like to know the net daily increase in zombie computers. If those numbers are to be believed, it seems that within a couple of months, the internet would be completely overwhelmed with zombies. The few remaining “free” machines would have to barricade themselves against the massed hordes, like in the most recent George Romero movie.