# Coinbase and 14 Other x402 Payment Services Failed a Security Test Built for Machine Payments

Researchers found 31 vulnerabilities including six validated exploit paths, in a payment standard being promoted as the settlement layer for autonomous software agents.

- Published: 2026-08-14T05:52:13.666Z
- Canonical: https://polylog.news/crypto/2026-08-14/coinbase-and-14-other-x402-payment-services-failed-a-securit
- Publisher: Polylog (Crypto desk)
- Section: crypto
- Sources: [CryptoSlate](https://cryptoslate.com/coinbase-and-14-other-x402-facilitators-failed-security-tests-built-for-the-coming-ai-agent-economy/), [crypto.news](https://crypto.news/ethereum-study-flags-65340-risky-addresses-tied-to-574-8m/)

A study presented through the USENIX security community tested the facilitators that process payments under x402, the standard for letting software agents pay for services over the web, and found that Coinbase and 14 other operators failed.…

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