FreeBSD and User Security

[David Naylor]

Hi All,

Today I read an article describing how my government had lost ZAR200 000 000 
from fraud.  This is just under $25 000 000.  The article credited this loss 
largely due to the use of spyware.  

My question is how secure is FreeBSD (including KDE, GNOME and XFCE) to 
attacks, including cracking and spyware.  In addition, is there anyway to 
prevent a user from executing a program that is not owned by root (i.e. any 
program installed by the user), this would prevent spyware being installed 
(assuming root has been properly locked down) and subsequently run.  

If anyone, in addition, has answers for Linux and *BSD it would be great to 
know as well.  

Best Regards

David
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