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Optimism Smart Contract Security Audits

Optimism powers one of Ethereum's largest L2 ecosystems and the OP Stack underpins multiple chains including Base. Protocols deploying on Optimism benefit from Ethereum security inheritance but face L2-specific risks that require targeted audit coverage.

$1.1B+

TVL on OP Mainnet

200+

Active protocols

34+

Chains in the Superchain

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Optimism-Specific Security Risks

Every blockchain has unique security properties. These are the risks specific to building on Optimism.

Optimistic Rollup Finality

Optimism's 7-day challenge period means transactions aren't final on L1 for a week. Protocols handling cross-chain assets must account for this delay.

Sequencer Centralization

Transaction ordering controlled by a single sequencer. Protocols must handle sequencer downtime and ordering risks.

OP Stack Shared Risk

A vulnerability in the OP Stack could affect Optimism, Base, and every chain built on it. Protocol-level audits should consider stack-level dependencies.

Standard EVM Risks

All Solidity vulnerability classes apply with the same severity as Ethereum mainnet.

Notable Exploits on Optimism

Real incidents that demonstrate why Optimism security audits matter.

Wintermute OP token exploit

$15M2022

Gnosis Safe counterfactual deployment exploit: 20M OP tokens sent to an undeployed L2 contract address.

Frequently Asked Questions

Building on Optimism?

Get a security audit from a team that understands Optimism's architecture. We respond within 24 hours.

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