Its not the viruses that bother me goates, its the intruders. I've been on-line for just over thirty five minutes and 87 intrusion attempts have been blocked, originating from 17 different countries. WTF do they all want with my PC? Collecting surfing history so they can target advertising? Judging by the random rubbish I get in my mailbox every day that's not very likely.
I don't have control of my machine any more and it can't be used for confidential communications. As for the IT department keeping the network secure, their spyware makes them the most likely source of security leaks. We've gone back to using faxes for a lot of messages, to keep them secure from prying eyes.
BTW I just had a stream of over fifty intrusion attempts while writing this....