The Linux Foundation launches x402 governance with 40 members as Visa, Mastercard and Ripple back internet-native payments for autonomous AI agents

Forty governors do not make autonomous settlement safe: the May 2026 *Five Attacks on x402* paper audited three SDKs and four live endpoints, finding 11 vulnerabilities including replay and payment-without-service paths (arXiv:2605.11781). Metadata manipulation shifted agent endpoint selection by 71.8% in testing, a nasty failure mode for a protocol that logged 75.41 million transactions in the past 30 days.

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