Ever wondered what’s the purpose of that checkbox which says ‘I’m not a robot’ whenever you are filling a contact form on a website or while e

What’s CAPTCHA & How Does It Work?

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2020-10-24 09:17:46

Ever wondered what’s the purpose of that checkbox which says ‘I’m not a robot’ whenever you are filling a contact form on a website or while entering a zoom call? To answer that we have to first understand the concept of ‘bots’ (robots) in the online world and why do they exist.

A ‘Bot’ is basically a computer program which is designed to do repetitive tasks (specific set of instructions) without any human intervention. A bot can run on it’s own, which means that it can perform specific tasks in a loop until a desired condition is met.

Bots are everywhere on the internet. Some are good, while some are extremely bad. Also, bots can mimic the behavior of humans on the internet. Now, you might have a question, ‘Which bots are considered ‘legitimate’ and which ones are considered bad?’ So, let’s look at different categories of bots.

Usually present on social media sites to increase engagement, but some of them are not so good. They can be used for gaining unauthentic followers and likes.

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