The figures are based on Windows/Vista machines, obviously; according to Microsoft, the level of Vista infections was substantially lower than that for XP-based machines.
The persistence of Conficker is borne out by the worm's placement as the top infection agent.
Worldwide, rogue anti-virus scams remain the most prevalent threat, although the number of people falling for the pop-up attacks actually declined a bit.
One interesting finding that falls into the department of "how many times do you have to be told?": the higher (most recent) the service pack on a machine, the lower the rate of infection.
The more frequent -- read constant, and obsessively so -- your attention to maintenance, updates, and patches, the less vulnerable your systems are.
The complete Microsoft Security Intelligence Report, v.7 can be downloaded here.
