bot

computer program

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Last updated

July 19, 2026

Quick Summary

A bot is a computer program designed to perform automatic, repetitive tasks. These tasks can range from simple actions like tracking online prices to more complex ones, often mimicking human behavior. Bots are also referred to as software agents.12

While the term "bot" can sometimes be used interchangeably with "robot," robots are typically physical machines capable of independent movement and complex actions. Bots, on the other hand, are software-based.3

Bots can be used for beneficial purposes, such as assisting website visitors through dialogue (chatbots) or gathering information. However, they can also be used maliciously. Malicious bots can probe computer systems for vulnerabilities or be part of a network of infected computers called a botnet, used to launch attacks.214

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CAPTCHA
…automated computer programs, known as bots and spiders, from gaining access to websites. A CAPTCHA, which may consist of letters, numbers, or images, is distorted in some manner to prevent recognition by computers but not so distorted that a human with normal vision cannot identify the code and retype it.
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…automated computer programs, known as bots and spiders, from gaining access to websites. A CAPTCHA, which may consist of letters, numbers, or images, is distorted in some manner to prevent recognition by computers but not so distorted that a human with normal vision cannot identify the code and retype it.
Read More