ERC-777/1155/721 hook without reentrancy guard

USDD (Decentralized USD)'s assessment for RD-F-015 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

Ethereum ERC-20: Standard ERC-20; no ERC-777/1155/721 integration and no tokensReceived/onReceived hooks. TRON TVM: EVM-specific pattern not applicable. Green.

Sources #

Etherscan
Usdd Stablecoin source - EtherscanUSDD Ethereum ERC-20 source - no ERC-777/1155/721 hooksretrieved 2026-05-17

Methodology #

Determine whether the protocol integrates token standards with callbacks (ERC-777 tokensReceived, ERC-1155 onReceived, ERC-721 onReceived) without reentrancy guards on the affected functions.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol usdd factor RD-F-015 score green collected_at 2026-05-17 11:34:18