แคปต์ชา

Also known as Completely Automated Public Turing test to tell Computers and Humans Apart, captcha, CAPTCHA (Challenge-response test)

upright=1.35|thumb|This CAPTCHA (GIMPY-R, c. 2005) of "smwm" obscures its message from computer interpretation by twisting the letters and adding a slight background color gradient.

AI overview

A CAPTCHA is a test that asks you to prove you're human by completing a task a computer can't easily do, like reading distorted letters or identifying objects in images. Websites use CAPTCHAs to prevent automated programs from accessing accounts or abusing services.

AI-generated from the Wikipedia summary — may contain errors.