The internet is growing dramatically in both the number of users and applications, and their respective bandwidth. Over the past few years, a new variant of user has entered the world of the internet, commonly known as a smart device. In its simplest form, it can be a refrigerator, an AC unit, or a microwave, while it can be as complex as a drone or automated vehicle. These smart devices are also referred to as Internet of Things (IoT) devices, monitoring the functionality and operations of connected utilities. Despite of enough use cases, attackers are making use of them to launch some massive cyber attacks called distributed denial-of-service (DDoS) attacks. In this chapter, you will learn about DDoS attacks and how blockchain can be more effective at defending organizations from such massive attack operations.
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