AI × CryptoBullisharXiv – CS AI · 14h ago7/10
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Hardening x402: PII-Safe Agentic Payments via Pre-Execution Metadata Filtering
Researchers have developed presidio-hardened-x402, an open-source middleware that filters personally identifiable information from AI agent payment requests using the x402 protocol before data reaches payment servers or centralized APIs. The tool achieves 97.2% precision in detecting PII with minimal latency, addressing a critical privacy gap where payment metadata is currently transmitted without data processing agreements.