A denial-of-service (DDoS) attack is a cyberattack tactic in which the target system is flooded and overwhelmed with internet traffic, rendering it inaccessible to authorized users. DDoS attacks are a powerful type of denial-of-service (DoS) attack as they use multiple sources to generate exponentially high traffic. Botnets, which are networks of hacked devices, are typically used by attackers to make it hard to pinpoint the source. The purpose is to overwhelm a system’s resources to make it impossible for legitimate traffic to reach its destination.