There seems to be something of a misconception, at the smaller end of the business scale at least, that data security is somehow a terribly complex thing that is also expensive to achieve properly. This myth is no doubt massaged just a little bit by small business consultants with one eye on the invoice. The truth of the matter is somewhat different, of course, and basic data security is neither difficult nor expensive to achieve. All it takes is a little bit of technical know-how and an awful lot of common sense.