When they proposed the Domain Name System (DNS) in 1983, computer scientists Paul Mockapetris and Jon Postel never intended it to become an attractive means for hackers to commit crimes. As a trust-based communications protocol, the DNS was first implemented in the early 1980s to connect devices to the Internet. It works by mapping domain names to IP addresses.
Unfortunately, it wasn’t long before unscrupulous actors found the protocol’s design and components easy to abuse. Open DNS resolvers abound on the Internet, and the same goes for the exploit kits that criminals can deploy even without any technical knowledge.