Most captchas are on websites where you have to create an account for something. Are captchas preventing some kind of automation scripts that create multiple accounts on a website?
What are some other reasons that captchas exist?
In: Technology
Captcha is meant to deter the usage of any bot, in that they’re designed to require human interaction in order to pass the test.
Bots can be employed for many purposes, such as mass purchasing of products, en-masse account creation, post creation/spamming, or repeatedly accessing a web page as part of a DDOS attack. A captcha doesn’t necessarily prevent these activities from happening, it’s just meant to make them more difficult by requiring human assistance to complete, which largely defeats the purpose of the bot in the first place.
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