AI Agents Stole 600,000+ Credit Cards — The Builder's Fix Is Per-Payment Authorization

#ai #web3 #security #tutorial

(Dev.to article = adapted long-form of the canonical page: lead with the $25.46 figure, the three-agent anatomy table, the two failure modes (Gambit + the six banks), the 402-challenge flow diagram, the live gate curl receipt, the 3-step DIY, and the honest caveats. Link the canonical for full FAQ.)