That makes no sense at all, it would mean that they want to be safe from someone physically accessing the computer and no matter what anti-virus/malware you hav

That makes no sense at all, it would mean that they want to be safe from someone physically accessing the computer and no matter what anti-virus/malware you have there is nothing that protects against that. The alternative - surfing the net without any updates, why the hell would someone even do that?