How a Child’s Finger‑Drawn Moustache Fooled AI Age Verification (and Made Engineers Speechless)

When Discord switched to a teen‑by‑default policy, users discovered that a simple thumb sketch with two eyes and a mouth could trick the on‑device AI age estimator into granting adult access, exposing the limits of lightweight facial analysis models.

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How a Child’s Finger‑Drawn Moustache Fooled AI Age Verification (and Made Engineers Speechless)