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CAPTCHA
Security
A test to tell humans and bots apart.
Definition
A CAPTCHA is a challenge that tries to confirm you’re a real person, not an automated bot.
In plain English
A test to tell humans and bots apart.
Why this matters
Why it matters: It helps reduce automated attacks like credential stuffing and spam that can lead to account abuse.
Example
Example: Selecting images with traffic lights before logging in.