# Audits

**Mento V3** is covered by two **ChainSecurity** audits:

1. **Mento Core V3** — FPMM-based exchange, OracleAdapter, liquidity strategies, CDP integration, and TradingLimitsV2. The report covers functional correctness, oracle implementation and operational implications, rounding, and documentation.\
   [ChainSecurity — Mento Core V3](https://www.chainsecurity.com/security-audit/mento-core-v3)
2. **Mento Liquity V2** — The Liquity v2 fork that underpins **CDP-backed stables** (e.g. GBPm). Users deposit USDm and mint non-USD stables against it; the system includes governance-controlled SystemParams, an upgradable Stability Pool used for rebalancing, and an FX price feed.\
   [ChainSecurity — Mento Liquity V2](https://www.chainsecurity.com/security-audit/mento-liquity-v2)

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## Historical audits (earlier versions)

The following audits refer to earlier protocol versions (V2 / V1) and are kept for reference. They do not cover the current V3 FPMM layer.

<table><thead><tr><th width="143">Date</th><th>Link</th><th>Auditor</th><th width="100">Version</th></tr></thead><tbody><tr><td>03/2024</td><td><a href="https://0xmacro.com/library/audits/mento-3">Macro audit 3</a></td><td>Macro</td><td>V2.3.0</td></tr><tr><td>03/2024</td><td><a href="https://audits.sherlock.xyz/dashboard/404ec017225af69f6deff9b722393a44">Sherlock contest</a></td><td>Sherlock</td><td>V2.3.0</td></tr><tr><td>01/2024</td><td><a href="https://0xmacro.com/library/audits/mento-2">Macro audit 2</a></td><td>Macro</td><td>V2.3.0</td></tr><tr><td>08/2023</td><td><a href="https://0xmacro.com/library/audits/mento-1">Macro audit 1</a></td><td>Macro</td><td>V2.2.0</td></tr><tr><td>05/2023</td><td><a href="https://www.verilog.solutions/audits/mento/">Verilog (extended)</a></td><td>Verilog</td><td>v2.1.0</td></tr><tr><td>02/2023</td><td><a href="https://www.verilog.solutions/audits/mento/">Verilog</a></td><td>Verilog</td><td>v2.0.0</td></tr><tr><td>2020-2021</td><td><a href="https://blog.openzeppelin.com/celo-contracts-audit/#phase-3">OpenZeppelin</a></td><td>OpenZeppelin</td><td>v1.0.0</td></tr></tbody></table>