A Distributed Denial of Service (DDoS) attack is a malicious attempt to disrupt the normal functioning of a targeted server, service, or network by overwhelming it with a flood of internet traffic. This is accomplished by harnessing the power of multiple compromised devices, often forming a botnet, which collectively generates traffic to incapacitate the target. The emergence of IoT devices and cloud computing has made DDoS attacks easier and more impactful, highlighting the need for robust security measures in parallel and distributed computing environments.
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