An invisible AI that feeds you LeetCode answers is a perfect hack for a broken filter—but it doesn’t fix the filter. Big Tech leans on puzzles because of volume; candidates chase comp; everyone loses signal. Use AI to ship real work, not to cosplay competence in a webcam box. If you want FAANG, grind or get lucky; if you want to be evaluated well, interview on real tickets with the team you’ll ship with. Cheating might earn a clip on Tech Twitter and a blacklist. Interviews should measure outcomes in small-team, real workflows—where Shadow AI actually shines. LeetCode proves LeetCode. Software jobs should prove software.