This 'strike back' notion is not new. I remember in the mid-90s there was a silly commercial firewall product called the 'Sidewinder' that touted the ability t

This 'strike back' notion is not new. I remember in the mid-90s there was a silly commercial firewall product called the 'Sidewinder' that touted the ability to 'strike back' at attackers, which I believe launched a daemon that tried to trace the origin of the attacker. They were targeted at the enterprise and cost like $50k. The pointy-haired types at the place where I worked at the time were extremely excited by this notion, and thought it was the coolest thing in the world, so guys I knew on the network team were tasked with deploying them into production throughout the various zones in our network topology. I remember the horror stories, our network guys couldn't ever to get them to work quite right, and they were always 'striking back' seemingly randomly against phantom threats, eventually causing crippling load on the machine. Eventually the feature was turned off, and a little bit later they were replaced by commodity Linux boxes. To this day whenever this group of friends and I discuss a new firewall product or technology we often ask dramatically "BUT CAN IT STRIKE BACK!?"