a group of computers that are controlled by malware 僵尸网络（指受恶意软件控制的计算机群） The internet has been flooded with botnets, unnoticed by the public. 僵尸网络充斥着互联网，公众对此并不了解。 Botnet attacks can be used to damage a competitor’s website. 僵尸网络攻击可用于破坏竞争对手的网站。