# Audits Beyond the harsh internal scrutiny to which we subject all of our codes, we retain Certik on a monthly contract for the express purpose of auditing our unique code bases. When deemed necessary, we also reach out to external auditing firms to provide additional reassurance. ## 28 May 2021 In developing Reaper Farm, we implemented changes to Yearn's contracts. We added state for profit/loss tracking, support for tokens and deposits that require tax, and deposit caps. These additions were all audited by Solidity.Finance. They found no vulnerabilities. You can find their report [**here**](https://solidity.finance/audits/ReaperFarm/). ## 08 Nov 2022 Our multi-strategy vaults have undergone an extensive Certik audit with **no critical risks**. All identified risks have been resolved or have been acknowledged and are being actively managed by our team. The full report is available below. {% file src="/files/naL08W7dpwAGHfekVoth" %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.reaper.farm/security/audits.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.