Comment AKA: Round robin DNS load balancing. (Score 3, Insightful) 21
Basically all major hosting providers even describe this technique as a cheap easy way to add load balancing without a dedicated load balancer, this 'fast flux' method is just a way lots of people did it if they didn't control the DNS server either by constantly pushing new DNS records instead to cycle between.
It's been used for decades, plural. Just suddenly it's a big security threat because it makes tracking more complicated somehow?