What is DDOS? It stands for Distributed Denial of Service.
What is a DDOS Attack? An attack involving the tactic of distributed denial of service.A DDOS Attack is one of the most basic, and effective, hacking techniques. The attacker uses distributed requests, sometimes hundreds of thousands at the same time (including from malware-infected computers of unsuspecting third parties), to overload a target Web site. This in effect shuts down the target, preventing normal customers from using it, and therefore creating a "denial of service."
Attackers can have a variety of motives, from the desire to send a public political message to use of DDOS as part of a sophisticated cyber crime scheme. For a tutorial and DDOS attack trends and news, see the other posts on this site.