Security
Security
Post-mortems, audits and patch notes — reported transparently.
x402-guard v0.2: Closing All Five Free-Riding Attacks on Agentic Payments
A 2026 security paper catalogues five ways to free-ride an x402 facilitator, reaching resource-leakage ratios up to 100%. x402-guard now ships a tested defense for every one — as a zero-dependency library any facilitator can drop in.
July 3, 2026 · 7 min read
Five Ways to Rob an AI Agent: How Furlpay Hardens x402 Payments
x402 moves ~$600M a year in agentic USDC payments — and 2026 security research documents attack classes most implementations don't defend. Here's how Furlpay's pay-per-call API closes authorization, binding, replay, and web-layer holes.
July 2, 2026 · 7 min read
Securing the Ledger: Hybrid Off-Chain Policy Guards vs. Modular Bugs
Modular smart wallets expand the attack surface. Furlpay's hybrid guard pairs on-chain Safe wallets with an off-chain HSM policy engine.
May 24, 2026 · 6 min read