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Strong CAPTCHA offers a modern take on traditional CAPTCHA that thwarts bots by completely revamping the public key pattern that is susceptible to bad actors. Strong CAPTCHA works by loading an incredibly thin remote client that allows your user to solve the CAPTCHA, but ensures that bot farms are incapable of attacking your app.

Strong CAPTCHA diagram

You are in control of determing when a user is prompted with Strong CAPTCHA. We recommend using Strong CAPTCHA when a user is attempting to login from a suspicious device (check out Device Fingerprinting) or about to take an action that carries a high risk of fraud (e.g. collecting a sign up bonus).