The value of a bot is that you can communicate with it through a mechanism that you use often: instant messaging.

聊天机器人（bot）的意义在于，您能够通过经常使用的机制 —— 即时消息 —— 与其进行通信。

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How to create an instant messaging "bot"?

如何创建即时消息bot ？

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Although there have been malicious bots around for some time instant messaging, security firm IMLogic believes that this is the first time someone has tried to use bot code to help spread a worm around an IM network by pretending to be a legitimate user.

BBC: Hand on keyboard