People still don't appreciate the seriousness of ensuring their internet security software is up to date. Surveys show that well over half those surveyed were confident that the new PC they were using is protected before it is even setup. This is true to an extent, most PC's come with some form of internet security software pre-installed but this is only half of the story.
With the speed of attacks increasing, new PC's are very vulnerable, this is because patches for the Operating System (OS) haven't been updated, and internet security software updates will not have been updated and installed.
It is also estimated that an unprotected PC can now be hijacked or infected with malware within minutes of logging onto the internet. With new PC's the first thing you should do is update and install your internet security software, and then run Windows Update.