For example, in the simplest case, network sniffing is used to obtain passwords, and those passwords are then used to mount an application-level attack.

例如，在最简单的情况中，网络嗅探能够用于获取密码，然后这些密码可以用于进行应用级攻击。

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Network sniffing is like one double-edged sword. It makes the network administrator convenience, but it also offers the hacker a tool to steal network information.

网络监听技术就像一把双刃剑，在提供给网络管理员管理网络的方便时也提供给黑客一个盗取网络信息的工具。

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Many of the network sniffing tools already mentioned in this article provide varying levels of protocol decoding by looking at the port and content details to determine the protocol being used.

本文之前提到的许多网络嗅探工具都提供了不同级别的协议解码，它们是通过检查端口和内容来确定所使用的协议实现的。

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Also, given the possibility of network sniffing, use switched Ethernet hubs wherever possible to isolate traffic (thus minimizing the amount of sniffable information).

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Furthermore, someone can gain access to an e-mail or social network account using sniffing methods, without needing that person's password.

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