# Audits

Notional invests in thorough testing and auditing of Notional smart contracts. Here is the list of the multiple [security audits](https://github.com/notional-finance/contracts-v2/blob/master/audits/README.md) Notional underwent:

* [Notional V1, Open Zeppelin | Dec 2020](https://blog.openzeppelin.com/notional-audit/)
* [Notional V2 Governance, Open Zeppelin | Nov 2021](https://blog.openzeppelin.com/notional-v2-audit-governance-contracts/)
* [Notional V2, ABDK | Sept 2021](https://github.com/notional-finance/contracts-v2/blob/master/audits/ABDK%20-%20Notional%20V2%2C%20Sept%201%202021.pdf)
* [Notional V2, Certora | Nov 2021](https://github.com/notional-finance/contracts-v2/blob/master/audits/Certora%20-%20Formal%20Verfication%20Report%2C%20Nov%201%202021.pdf)
* [Notional V2, ABDK Fixes | Nov 2021](https://github.com/notional-finance/contracts-v2/blob/master/audits/ABDK%20-%20Notional%20V2%20Fixes%2C%20Nov%201%202021.pdf)
* [Notional V2, Code Arena | Oct 2021](https://code4rena.com/reports/2021-08-notional/)
* [Staked NOTE | Mar 2022](https://code4rena.com/reports/2022-01-notional/)
* [Notional V2.1, Consensys Diligence | Mar 2022](https://consensys.net/diligence/audits/2022/03/notional-protocol-v2.1/)
* [Wrapped fCash, Code Arena | Jul 2022](https://code4rena.com/reports/2022-06-notional-coop/)
* [Leveraged Vaults, Consensys Diligence | Jul 2022](https://consensys.net/diligence/audits/2022/07/notional-finance/)
* [Leveraged Vaults + Balancer Vault Strategy, Sherlock | Oct 2022](https://app.sherlock.xyz/audits/contests/2)
* [Balancer Vault Strategy Fixes, Sherlock | Jan 2023](https://app.sherlock.xyz/audits/contests/31)
* [Convex Leveraged Vault, Sherlock | Mar 2023](https://app.sherlock.xyz/audits/contests/52)
* [Notional V3, Sherlock | May 2023](https://app.sherlock.xyz/audits/contests/59)
* [Single Sided LP Leveraged Vaults | Nov 2023](https://audits.sherlock.xyz/contests/119)
* [External Lending, Wrapped fCash | Jan 2024](https://audits.sherlock.xyz/contests/142)
* [Pendle PTs, Vault Incentives | June 2024](https://audits.sherlock.xyz/contests/446?filter=questions)