# Audits ## Security Reviews | Auditors | Scope | Date | Report | | -------------------------------------- | ----------------------------------------------------------------------------------------------------------------------- | ---------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [Bail Security](https://bailsec.io/) | Parallel l Savings Fix Audit | 2026-07 | [bailsec-report](https://github.com/parallel-protocol/parallel-parallelizer/blob/main/docs/audits/savings-fix/Bailsec%20-%20Parallel%20Protocol%20-%20Savings%20Fix%20-%20Final%20Report.pdf) | | [Cyfrin](https://www.cyfrin.io/) | Parallel l Savings Fix Formal Verification | 2026-06-10 | [cyfrin-report](https://github.com/parallel-protocol/parallel-parallelizer/blob/main/docs/audits/savings-fix/Cyfrin%20-%20Parallel%20Protocol%20-%20Savings%20Fix%20-%20Formal%20Verification.pdf) | | [Cyfrin](https://www.cyfrin.io/) | Parallel l Savings Fix Audit | 2026-06-09 | [cyfrin-report](https://github.com/parallel-protocol/parallel-parallelizer/blob/main/docs/audits/savings-fix/Cyfrin%20-%20Parallel%20Protocol%20-%20Savings%20Fix%20-%20Final%20Report.pdf) | | [Cyfrin](https://www.cyfrin.io/) | Parallel v3.2 l Agentic Payments Update Audit | 2026-05-24 | [cyfrin-report](https://github.com/parallel-protocol/parallel-parallelizer/blob/main/docs/audits/v3.2/Cyfrin-Parallel%20Protocol%20-%20Upgrade-3.2%20-%20Final%20report.pdf) | | [Bail Security](https://bailsec.io/) | Parallel v3.2 l Agentic Payments Update Audit | 2026-05 | [bailsec-report](https://github.com/parallel-protocol/parallel-parallelizer/blob/main/docs/audits/v3.2/Bailsec%20-%20Parallel%20Protocol%20-%20Upgrade%20V3.2%20-%20Final%20Report.pdf) | | [Cyfrin](https://www.cyfrin.io/) | Parallel v3.1 l Comprehensive Audit of the Protocol | 2026-03-04 | [cyfrin-report](https://github.com/parallel-protocol/parallel-parallelizer/blob/main/docs/audits/v3.1/Cyfrin%20-%20Parallel%20Protocol%20-%202026-03-04.pdf) | | [Cyfrin](https://www.cyfrin.io/) | Parallel v3.1 l Comprehensive Formal Verification of the Protocol | 2026-03-04 | [cyfrin-report](https://github.com/parallel-protocol/parallel-parallelizer/blob/main/docs/audits/v3.1/Cyfrin%20-%20Parallel%20Protocol%20-%20Formal%20Verification%20-%202026-03-04.pdf) | | [Bail Security](https://bailsec.io/) | Parallel v3.1 l Fee Claim Update Audit | 2026-02 | [bailsec-report](https://github.com/parallel-protocol/parallel-parallelizer/blob/main/docs/audits/v3.1/Bailsec%20-%20Parallel%20Protocol%20-%20Fee%20Claim%20Update%20-%20Final%20Report.pdf) | | [Certora](https://www.certora.com/) | Parallel V3: parallel-core l parallel-tokens l parallel-parallelizer (only LibOracle, Swapper, Redeemer, RewardHandler) | 2025-04 | [certora-report](https://github.com/parallel-protocol/parallel-parallelizer/blob/main/docs/audits/v3/Certora_Report_Parallel_Parallelizer_BridgeToken_final.pdf) | | [Bail Security](https://bailsec.io/) | Parallel V3: parallel-core l parallel-tokens l parallel-parallelizer | 2025-03 | [bailsec-report](https://github.com/parallel-protocol/parallel-parallelizer/blob/main/docs/audits/v3/Bailsec%20-%20Parallel%20Protocol%20-%20V3%20Core%20-%20Final%20Report.pdf) | | [Zenith](https://www.zenith.security/) | PRL Token l PRL Tokenomics | 2025-02-19 | [zenith-report](https://github.com/parallel-protocol/PRL-token/blob/main/docs/audits/Parallel%20Protocol%20-%20Zenith%20Audit%20Report.pdf) | | [Bail Security](https://bailsec.io/) | PRL Token l PRL Tokenomics | 2025-01 | [bailsec-report](https://github.com/parallel-protocol/PRL-token/blob/main/docs/audits/Bailsec%20-%20Parallel%20Protocol%20-%20PRL%20Token%20-%20Final%20Report%20-%20January%202025.pdf) | | [Bail Security](https://bailsec.io/) | Parallel Bridging Module l Parallel V2 VaultsCoreState | 2025-01-13 | [bailsec-report](https://github.com/parallel-protocol/bridging-module/blob/main/docs/audits/Bailsec%20-%20Parallel%20Bridge%20-%20BridgeableToken%20-%20Final%20Report%20-%20December%202024.pdf) | | [Bail Security](https://bailsec.io/) | Parallel Bridging Module | 2024-08-21 | [bailsec-report](https://github.com/parallel-protocol/bridging-module/blob/main/docs/audits/Bailsec%20-%20Parallel%20Bridge%20-%20BridgeableToken%20-%20Final%20Report%20-%20July%202024.pdf) | | [Code4rena](https://code4rena.com/) | SuperVaults V2 | 2022-08-07 | [code4rena-report](https://code4rena.com/reports/2022-08-mimo) | | [Code4rena](https://code4rena.com/) | Inception Vaults l Liquidity Mining V2 l LP Token Oracles l SuperVaults V1 | 2022-05-02 | [code4rena-report](https://code4rena.com/reports/2022-04-mimo) | | [Certik](https://www.certik.com/) | Parallel V2 | 2021-04-18 | [certik-report](https://github.com/code-423n4/2022-04-mimo/blob/main/core/audits/certik.pdf) | | [Quantstamp](https://quantstamp.com/) | Parallel V2 | 2021-01-29 | [quantstamp-report](https://certificate.quantstamp.com/full/ten-x-titan.pdf) | ## Security Notes ### Savings Module — donation-attack fix The Savings Module (sUSDp) tracks its principal in an internal `storedAssets` variable rather than reading the vault's raw token balance. USDp sent directly to a vault therefore never enters the yield accrual base or the share price; it is held as surplus, recoverable by governance. The change was verified three times before production: audited by Cyfrin (2026-06-09), formally verified by Cyfrin with the Certora Prover — three donation-safety properties that fail on the previous implementation and hold on the new one (2026-06-10) — then audited by Bail Security on the amended code (2026-07). Every finding raised by the two audits was resolved or acknowledged in the reports linked above, and the upgrade reached production in July 2026. :::info Developers can access the [developers documentation](/developers-hub/developers-guide) for a technical description of the Parallel Protocol. ::: ## Related * [Risks: smart-contract risk](/security/risks#3-smart-contract-risk) * [Fees](/products/parallel-v3/fees) * [Proof of Solvency](/security/proof-of-solvency)