For the past few years, IoT botnets have set new standards in DDoS attacks. From the notorious Mirai incident in September 2016 that broke the US Internet to ' 'GitHub's record-breaking 1.3 Tbps attack in 2018, cyber-criminals have been constantly trying to outdo themselves. And vulnerable devices in the Internet of Things are surely lending a helping hand. The role of the Internet of Things (IoT) botnets in denial-of-service (DDoS) attacks has been increasing steadily in the past few years.