Distributed Denial of Service (DDoS) attack is when one or more compromised systems launch a flooding attack on a remote target(s), in an attempt to overload network resources and disrupt services.

A distributed denial-of-service (DDoS) attack is a cybercrime that floods a website, server, or network with malicious traffic to make it inaccessible or degrade its performance.

A Distributed Denial-of-Service (DDoS) attack is a cybercrime that involves flooding a server with internet traffic to make it inaccessible to users.

a cybercrime that floods a server or website with malicious traffic to make it inaccessible or degrade its performance.