What's the similarity between drones and software bots (worms, trojans, viruses, etc.)?
They are both riding the same trend. Here's what I mean.
Up until recently drones have been toys or dumb missiles. Why? Because they were dumb. The same thing is true with software bots/malware. Until recently, they were more of a nuisance than a threat.
What's changed? Now they are smart and they are getting smarter fast. In fact, the rate of change is so fast and the potential for improvement is so great, they are literally game changers in modern warfare.