Re: Oh that's just great
A Biologist writes: this is the Red Queen scenario. If you recall the Red Queen has to run fast just to stay still. This name has been given to the hypothesis explaining why sexual reproduction is so very widespread even if some species (rotifers, daphnia, aphids) get by apparently fine without it.
Living animals have to fend off so many parasites from the retroviruses which are just slightly encapsulated RNA strings up to multicellular parasites and sexual gene shuffling allows at least some offspring to simply survive in the face of the onslaught.
There are so many bad actors out there in the computer ecology from script kiddies to state actors that an immune system is needed. These researchers and those who search in pursuit of bounties are sadly necessary.