Below it, a tooltip: "Fusion 360 — gratuit et illimité. You accepted the terms."

Léo, a 19-year-old industrial design student in Lyon, can’t afford the €545 annual Fusion 360 subscription. His pirated copy crashes constantly. Late one night, he stumbles on a dark web forum post: "Fusion 360 — gratuit et illimité. No cloud. No expiration. No export restrictions."

His webcam light turns on. Green. Steady.

Léo closes Fusion. Uninstalls it. Wipes his hard drive.

The next morning, a new email lands in his inbox. No sender. No subject. Just a CAD file attached: "leo_v2.f3d"