DDoS attacks are deliberate attempts to disrupt services by overwhelming them with requests, leading to crashing servers or denial of services; the difference between DoS and DDoS lies in the scale, as DDoS involves multiple systems attacking a target, while DoS involves one system; there are three main motives behind DDoS attacks including targeting rivals, geopolitical reasons, and financial gain; DDoS attacks work through botnets controlled by attackers, with techniques like spoofing, reflection, and amplification used to launch attacks, and they can be difficult to identify; mitigation techniques include blocking IP addresses and having the capacity to withstand large traffic volumes; DDoS attacks are illegal due to impairing computer operations, with examples such as attacks on French government services and Google, highlighting the severity and impact of such cyber threats. ```
https://www.csoonline.com/article/571981/ddos-attacks-definition-examples-and-techniques.html