The brief introduction to CAPTCHA

Technically, CAPTCHA stands for “Completely Automated Public Turing Test to tell Computers and Humans Apart. The use case is pretty straightforward, to restrict unlimited consumption of internet resources by bots and spiders roaming in the public internet, we (users of internet) are presented with a real-time “turing test” while browsing. If users pass the test, they’re allowed forward, or else, they are thrown out.

With the mass adoption of internet is 2000s and simultaneously increasing computer bots, it became the need of the hour for protecting the resources from these 24x7 running scripts.

Just imagine a bot books all the movie tickets for a your favourite movie on its first show.The person running the bot, now sells the tickets in black for double or triple the price. I swear I will be pissed off.

...