ELI5 Capcha - Why can't bots check 'I am not a robot' checkboxes?

ELI5 Explain Like I'm 5: Bite sized answers to stuff you should know about - in a mini podcast

A reCAPTCHA is a CAPTCHA-like system designed to establish that a computer user is human. So how does the reCAPTCHA checkbox i.e. the "I'm not a robot" checkbox actually work? Why can't bots just check 'I am not a robot' and fool the system?

 

... We explain like i'm five!

 

Thank you to the r/explainlikeimfive community, and specifically the following reddit users whose questions and responses formed the basis of this conversation: edshnee, anthonyridad, ekto_, reifenstag, solepsis, nukerx & adipisicing

 

If you have suggestions, comments, or would like to be a guest on an upcoming episode of this podcast, please reach out to us at ELI5ThePodcast@gmail.com.

2019-03-15 7 min

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