Smart contract audit guides
What a HYDN smart contract audit covers for each type of protocol and EVM chain, what it costs, and how to prepare for one.
How much does a smart contract audit cost?
What drives smart contract audit pricing: logic density, integrations, upgradeability, test coverage and turnaround. How HYDN scopes and quotes an audit.
ReadSmart contract audit checklist
A practical pre-audit checklist for smart contract teams: code freeze, documentation, invariants, tests, deployment details and the questions HYDN will ask.
ReadWhen do you need a smart contract re-audit?
When a smart contract needs re-auditing after an upgrade, fork or new integration, and how HYDN scopes a re-audit around the change and what it touches.
ReadDeFi protocol audits
Manual DeFi protocol audits from HYDN: lending, AMMs, yield and derivatives, reviewed for code flaws and economic attacks such as oracle and flash loan exploits.
ReadToken and ERC-20 audits
ERC-20 and token audits from HYDN: mint and burn controls, transfer behaviour, fees, vesting, blacklists and admin powers, typically completed in 2 to 5 days.
ReadCross-chain bridge audits
HYDN audits cross-chain bridges: message verification, replay protection, validator trust, mint and release accounting and upgrade control. 1 to 3 months typical.
ReadStaking and vault audits
HYDN audits staking, restaking and ERC-4626 vaults: share accounting, rounding, inflation attacks, reward distribution, withdrawal queues and strategy risk.
ReadNFT and marketplace audits
HYDN audits NFT collections and marketplaces: mint limits, allowlists, royalties, metadata control, order signatures, auctions and settlement logic.
ReadDAO and governance audits
HYDN audits DAO governance: voting power snapshots, flash loan voting, proposal execution, timelocks, quorum, delegation and treasury controls.
ReadSmart wallet and account abstraction audits
HYDN audits smart contract wallets: ERC-4337 accounts and paymasters, EIP-7702 delegation, ERC-1271 signatures, modules, multisig and social recovery.
ReadEthereum smart contract audits
Smart contract audits for Ethereum mainnet: MEV exposure, gas behaviour, transient storage, EIP-7702 and the integrations Ethereum protocols depend on.
ReadArbitrum smart contract audits
Smart contract audits for Arbitrum: sequencer uptime checks, L1 to L2 messaging, address aliasing, retryable tickets and block number differences.
ReadBase smart contract audits
Smart contract audits for Base: sequencer uptime and oracle checks, OP Stack bridging and messaging, address aliasing and block-time assumptions.
ReadBNB Chain smart contract audits
Smart contract audits for BNB Chain: forked protocol risk, price manipulation on thin liquidity, token behaviour and the patterns behind past BSC exploits.
ReadPolygon smart contract audits
Smart contract audits for Polygon PoS: finality and reorg assumptions, Polygon to Ethereum bridging, POL token handling and block-time differences.
ReadTelos EVM smart contract audits
Smart contract audits for projects on Telos EVM, from HYDN, security partner to the Telos Foundation and auditor for Telos Incubator projects.
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