A distributed denial-of-service (DDoS) attack is a cyberattack that kicks legitimate users out of system resources. First, the attackers steal credentials to access the system and infect devices with malware. The malware allows unauthorized users to remotely control devices and create a group of bots that carry out the attacker’s ill intentions. Once a botnet is established, attackers flood the targeted network with so much traffic that the computer crashes and prevents authorized users from accessing the resources.