Apple’s OSX iterations have been known to be some of the more securely designed operating systems on the planet. There is no real threat from viruses under OSX because of it’s strict use of access rights, built into it’s BSD base which regulates the access rights of every user on the system. However, basic security in their user interface could be compromised by a very simple, very useful feature known as “Spaces“, a feature lifted and rebranded from X Windows and Amiga (reference: Wikipedia), through a effective Denial of Service.