A DDoS (Distributed Denial of Service) attack is a cyberattack where multiple computers flood a target - such as a website or online service - with excessive traffic, overwhelming its resources and causing it to slow down or become unavailable. Attackers often use networks of compromised devices, called botnets, to generate this traffic. DDoS attacks can disrupt businesses, cause financial losses, and damage reputations. With DDoS-as-a-Service (DaaS), even individuals without technical skills can rent tools online to launch such attacks, making them more common and accessible.