A network of bot infected devices that is used for massive denial-of-service attacks and bulk-email attacks where a huge number of emails from one point can be blocked by the service provider. In 2016, the Mirai botnet used web-connected DVRs, IP cameras, routers and IoT devices to launch an attack on Dyn, a company that runs the DNS infrastructure for many popular websites, such as Twitter, Netflix, Reddit and CNN. The attack resulted in many of these sites being taken offline.

A network of bot infected devices that is used for massive denial-of-service attacks and bulk-email attacks where a huge number of emails from one point can be blocked by the service provider. In 2016, the Mirai botnet used web-connected DVRs, IP cameras, routers and IoT devices to launch an attack on Dyn, a company that runs the DNS infrastructure for many popular websites, such as Twitter, Netflix, Reddit and CNN. The attack resulted in many of these sites being taken offline.