GoPlus: Several x402 ecosystem projects have been found to have risks, including over-licensing and signature replay issues.

GoPlus Security Research Institute conducted a detailed security risk scan of more than 30 x402 projects and risky projects warned by the community in Binance Wallet and OKX Wallet, and found that the following projects have risks of over-authorization, signature replay, HonyPot (Pixiu token), and unlimited issuance.