# Security Reviews

The following is a list of past security reviews.

Each review is focused on a different part of the codebase, and at a different point in time.
Please see the report for the specific details.

| Date    | Reviewer             | Focus                     | Report Link                                                                                                                                                           |
| ------- | -------------------- | ------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 2020-10 | Trail of Bits        | Rollup                    | [2020_10-TrailOfBits.pdf](./2020_10-Rollup-TrailOfBits.pdf)                                                                                                           |
| 2020-11 | Dapphub              | ECDSA Wallet              | [2020_11-Dapphub-ECDSA_Wallet.pdf](./2020_11-Dapphub-ECDSA_Wallet.pdf)                                                                                                |
| 2021-03 | OpenZeppelin         | OVM and Rollup            | [2021_03-OVM_and_Rollup-OpenZeppelin.pdf](./2021_03-OVM_and_Rollup-OpenZeppelin.pdf)                                                                                  |
| 2021-03 | ConsenSys Diligence  | Safety Checker            | [2021_03-SafetyChecker-ConsenSysDiligence.pdf](./2021_03-SafetyChecker-ConsenSysDiligence.pdf)                                                                        |
| 2022-05 | Zeppelin             | Bedrock Contracts         | [2022_05-Bedrock_Contracts-Zeppelin.pdf](./2022_05-Bedrock_Contracts-Zeppelin.pdf)                                                                                    |
| 2022-05 | Trail of Bits        | OpNode                    | [2022_05-OpNode-TrailOfBits.pdf](./2022_05-OpNode-TrailOfBits.pdf)                                                                                                    |
| 2022-08 | Sigma Prime          | Bedrock GoLang            | [2022_08-Bedrock_GoLang-SigmaPrime.pdf](./2022_08-Bedrock_GoLang-SigmaPrime.pdf)                                                                                      |
| 2022-09 | Zeppelin             | Bedrock and Periphery     | [2022_09-Bedrock_and_Periphery-Zeppelin.pdf](./2022_09-Bedrock_and_Periphery-Zeppelin.pdf)                                                                            |
| 2022-10 | Spearbit             | Drippie                   | [2022_10-Drippie-Spearbit.pdf](./2022_10-Drippie-Spearbit.pdf)                                                                                                        |
| 2022-11 | Trail of Bits        | Invariant Testing         | [2022_11-Invariant_Testing-TrailOfBits.pdf](./2022_11-Invariant_Testing-TrailOfBits.pdf)                                                                              |
| 2022-12 | Runtime Verification | Deposit Transaction       | [2022_12-DepositTransaction-RuntimeVerification.pdf](./2022_12-DepositTransaction-RuntimeVerification.pdf)                                                            |
| 2023-01 | Trail of Bits        | Bedrock Updates           | [2023_01-Bedrock_Updates-TrailOfBits.pdf](./2023_01-Bedrock_Updates-TrailOfBits.pdf)                                                                                  |
| 2023-01 | Sherlock             | Bedrock                   | [Sherlock Bedrock Contest](https://audits.sherlock.xyz/contests/38)                                                                                                   |
| 2023-03 | Sherlock             | Bedrock Fixes             | [Sherlock Bedrock Contest - Fix Review](https://audits.sherlock.xyz/contests/63)                                                                                      |
| 2023-12 | Trust                | Superchain Config Upgrade | [2023_12_SuperchainConfigUpgrade_Trust.pdf](./2023_12_SuperchainConfigUpgrade_Trust.pdf)                                                                              |
| 2024-02 | Runtime Verification | Pausability               | [Kontrol Verification][kontrol]                                                                                                        |
| 2024-02 | Cantina              | MCP L1                    | [2024_02-MCP_L1-Cantina.pdf](./2024_02-MCP_L1-Cantina.pdf)                                                                                                            |
| 2024-03 | Sherlock             | MCP L1                    | [Sherlock Optimism Fault Proofs Contest](https://audits.sherlock.xyz/contests/205)                                                                                    |

[kontrol]: https://github.com/ethereum-optimism/optimism/blob/876e16ad04968f0bb641eb76f98eb77e7e1a3e16/packages/contracts-bedrock/test/kontrol/README.md
