Once upon a time, in a galaxy not so far away, there were only a few computer viruses. Little more than a curiosity to most, they were relatively rare, slow spreading and in general, more of a mythological threat than a real one. The initial anti-virus products that were created to deal with these were perfectly adequate; updated once a month or so, the customers could be fairly sure that they would be protected. Fast-forward to today’s interconnected and always-on world, and the scale of the problem is orders of magnitude above where it was back in those early days.
