近年来，计算机蠕虫成为网络系统安全的重要威胁。

In recent years, computer worms become an important network security threats.

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很多计算机病毒、蠕虫和特洛伊木马的设计都利用了弱口令。

Many computer viruses, worms, and Trojan horses are designed to exploit weak passwords.

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安全专家估计目前已有七百万以上计算机受到Conficker蠕虫病毒感染，冒险到达一个里程碑。

The Conficker worm has passed a dubious milestone. It has now infected more than 7 million [m] computers, security experts estimate.

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The idea being if I find a pattern across multiple people's computers maybe all of those people are infected with the same kind of malware or virus or worm.

如果我从不同人的计算机中发现了一个模型,这就说明,所有那些人的计算机都感染了相同的,恶意软件，病毒或蠕虫。

哈佛公开课 - 计算机科学课程节选