A DDoS attack is a distributed attack on a company’s website or server. Many devices (mostly those which are part of a bot net) bombard their target with innumerable requests during such an attack. The result: Due to overload, the attacked website or server relents to the pressure and is no longer available, or only to a limited degree. Blackmail attempts are frequently the reason behind DDoS attacks. If no payment is made, criminals will threaten to repeat the attacks.