A DDoS (Distributed Denial of Service) attack is a cyberattack where attackers overwhelm a target's network, server, or application with massive amounts of traffic, causing it to slow down or crash. This is achieved by leveraging a botnet, a network of compromised devices that flood the victim's system with malicious traffic, making it inaccessible to legitimate users.
DDoS attacks are often used to disrupt business operations, extort organizations, or create diversions for more serious security breaches. They can range from volumetric attacks (flooding bandwidth with excessive traffic) to application-layer attacks (targeting specific services like login portals or databases). To protect against these threats, businesses implement DDoS mitigation solutions that detect, filter, and absorb malicious traffic before it reaches critical infrastructure.