Crypto Long & Short: What Happens When an AI Agent Pays for the Wrong Thing
Key Highlights: The x402 payment protocol, published by Coinbase in May 2025, intentionally excludes dispute mechanisms to enable sub-cent, millisecond settlements for machine-to-machine transactions. A systematic security study by researchers at EPFL and Zhejiang University revealed that all 15 live facilitators tested breached at least one of eight foundational safety rules. Transaction data on the ...