RISC OS has never been designed to have any security whatsoever. Anything
that can run on RISC OS, can do whatever it likes, gaining complete control
over the machine. A lack of security is not the same thing as not the same
thing as a vulnerability which allow an attacker to introduce rouge code on
to a mahine, via say a bug in a network service, webbrowser or email program.
RISC OS may have no security, but through well written applications and OS
components it also has almost no vulnerabilities either.
Windows on the other hand started out like RISC OS, as a desktop OS with
completely no security, the difference being now it is sold as enterprise
quality server and client OS, with strong security features. Windows
fundemental design does not allow this - none of the products my current
company makes would work if the OS had the sort of security it claims, and
other OS's such as Unix actually deliver. Also due to the chaotic and poor
quality of Windows development and the vast size of the OS code and enourmous
number of bundled components, it also has a seemingly infitine number of
vulnerabilities, which allow attackers to exploit the ineffective security.
The ARM Club Free Software - http://www.yqcomputer.com/
The 32bit Conversions Page - http://www.yqcomputer.com/