Hi all
I get asked this question all the time. Why should a PC get infected if has all...AV. Firewall., spywaare blaster a lot. I tell them it is because they don't run them enough and updating and upgrading. Please someone give me their take on this.
Thanks

Moved from the XP Forum. ~acklan~

No single product is 100% foolproof and can detect and remove all threats at any given time. The security community is in a constant state of change as new infections appear. Each vendor has its own definition of what constitutes malware and scanning your computer using different criteria will yield different results. The fact that each program has its own definition files means that some malware may be picked up by one that could be missed by another. Thus, a multi-layered defense using several anti-spyware products (including an effective firewall) to supplement your anti-virus combined with common sense and safe surfing habits provides the most complete protection.

I would venture to suggest that a large majority of infections are the result of "user error." Far too many people, for example, download and install all sorts of files without taking the time to do a simple research on Google, or blithely open E-mail attachments just because it seemingly comes from a legitimate source. Far too many people, also, have an AV, but do not keep its definitions current nor do they remember to turn it on before entering the WWW.
A well-informed not to mention cautious user is the best defence.
Cheers,
John

No single product is 100% foolproof

I'd probably say:

No products are 100 % foolproof

Or do you mean that more products will make your computer 100 % secure?

I know that the more programs you've installed on the computer, the more secure against viruses and trojans, but you ain't 100 %, are you?

The more protection you have, the greater is the detection rate of different types of malware. However, you can overkill your system with resource heavy security programs that will drain your resources and slow down performance. Sometimes you just have to experiment to get the right combo for your particular system as there is no universal solution that works for everyone.

There is no substitute for what jgweed said, no matter what you use.