Sick PCs should be banned from the net says Microsoft
http://www.bbc.co.uk/news/technology-11483008
What an absolute load of horse droppings, even if it is a justifiable statement. MS could/should have done more on OS security in the first place, as it is their holes in security that got most people into this mess in the first place.
How is this going top be achieved as the only real way of defining what is a sick PC is to do a test when they connect. Not that someone doing an unknown/unauthorised probe/scan of your system (privacy/morally/ethically) smacks of big brother and very dubious.
How would one site know not to do this test, etc. without a massive database, yet another privacy issue, or something held at system level that they access to block access, yet more privacy issues. Both of which would I'm sure be targets.
Having blocked so called sick PCs and who determines if the patient has a cold or a terminal illness; how are they to get clean without access to the internet (chicken and egg again). I sometimes if the people spouting this rubbish have too much so called intelligence and zero common sense.