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A single air conditioner failure at an AWS data center caused an eight-hour trading halt for Coinbase. Discover the hidden bug in a managed service that turned a simple thermal event into a multi-million dollar disaster.
AI agents could always decide to buy. As of spring 2026 they can actually pay — on real card rails, with no human in the loop — via Coinbase's x402, Visa's new agent tokens, and Nevermined's card delegation. The loop closed; the accountability didn't. A builder's read on the new agentic payment stack, why a 402 is suddenly a monetization primitive, and the guardrail problem nobody has solved.
