通信失败后，在重试阻止某些攻击类之前引入随机延迟。
After a communication failure, random delays are introduced before retry to frustrate certain classes of attacks.
演习模拟了一次协同网络攻击，目标是信息技术、通信、化学和交通系统与设施。
The exercise simulated a coordinated cyber attack on information technology, communications, chemical, and transportation systems and assets.
这样的攻击可能造成电表与供电设施之间通信的中断——最终造成断电。
Such an attack could result in loss of communication between the utility and meters-and the subsequent denial of power to your home or business.
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