'DDoS' stands for Distributed Denial of Service, a type of cyberattack where multiple compromised systems target a single service, overwhelming it with traffic. This flood of incoming requests aims to disrupt the normal functioning of the targeted server, service, or network, rendering it unavailable to legitimate users. DDoS attacks can cause significant downtime and financial loss for organizations. Implementing countermeasures, such as traffic filtering and cloud-based security services, is essential for mitigating the impact of these attacks.