"Joe Citizen" <> wrote in message
news:h5r1b.123903$...
> But if we all switch to open source the virus writers will target it, and
> you'll be affected too.
>
>
Only partially true. Virus writers may very well target open source
software.
Open source is of course a generic term that describes apps written to run
on Windows as well as other operating systems, so lets assume that this
poster means free operating systems like Linux and BSD
But the flaws in Windows which enable viruses to propagate have been caused
by Microsofts opt in security model, and the identical nature of the
unsecured default suite of internet applications.
With Linux some distribution vendors may adopt a similar model for
convenience and some may be more secure out of the box. Linux installs are
completely modular and may have nothing in common except the kernel and the
gnu base.
Its really down to how the file sharing and internet communication
applications are set up.
Windows can be secured without Anti virus products by eliminating the
fundamental exploits.
Thats what each Linux distro attempts to do, and the reason for the
identical security advisories each time one of the open source building
block apps needs a security update.
Windows 9x had so many vulnerabilities that the best that could be done was
to parse incoming code with anti virus software. Windows XP eliminates many
of the fundamental exploits, so it is a positive step.