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OtterSec

On Procur3Est. 2022osec.io ↗

RustSolidityMoveCairoSolanaEthereumAptosDEXLendingBridge

OtterSec is a blockchain security firm known for deep protocol-level audits across DEX, Lending, Bridge. This profile aggregates its audit record, 2340 findings and notable clients, so you can evaluate fit before requesting a competitive quote through Procur3.

Last updated: November 2026

Audits
200
across 4+ years
Findings logged
2340
all severities
Crit + high + med
968
material findings

Overview

About OtterSec

Founded in 2022, OtterSec is a blockchain security firm specialising in smart contract audits and protocol-level security reviews. The team works primarily in Rust, Solidity, Move and Cairo, covering engagements across Solana, Ethereum, Aptos and related ecosystems. Core areas of expertise include DEX, Lending, Bridge, Cross Chain.

With 200 audits on record, OtterSec has worked with notable protocols including Wormhole, Marinade Finance, Jupiter, Drift Protocol. The firm's review history provides a transparent track record that teams can evaluate before engaging.

Through Procur3, teams can put their scope to OtterSec alongside other matched firms and receive a competitive quote without a three-week sales cycle.

Languages
Rust, Solidity, Move, Cairo
Chains
Solana, Ethereum, Aptos, Sui, Polygon, Arbitrum
Expertise
DEX, Lending, Bridge, Cross Chain, Yield, Liquid Staking, Oracle, ZK, Zero-Knowledge (ZK) Security Review
Services
Smart Contract Audit, Rust Audit, Move Audit, Security Consulting

Track record

Findings by severity

Critical, high & medium96841.4%
Low, informational & other123252.6%
Unclassified1406%

Across 200 audits, OtterSec has logged 2340 findings, of which 968 were rated critical, high or medium, roughly 41% of the total.

OtterSec's published severity groups add up to fewer findings than its published total. The difference is shown as unclassified rather than assigned to either group.

Figures are updated periodically and may not include every engagement. Severity labels follow each report's own classification.

Selected work

Notable clients

  • WormholeBridge
  • Marinade FinanceLiquid Staking
  • JupiterDEX
  • Drift ProtocolDerivatives
  • TetherStablecoin
  • SuiL1

FAQ

Questions about OtterSec

Where can I find OtterSec's audit reports?

OtterSec publishes its audit reports at osec.io/reports.

What does OtterSec audit?

OtterSec lists Smart Contract Audit, Rust Audit, Move Audit and Security Consulting across Rust, Solidity, Move and Cairo, and has published work on Solana, Ethereum, Aptos, Sui, Polygon and Arbitrum.

How much does a OtterSec audit cost?

Procur3 doesn't hold published pricing for OtterSec. Audit cost depends on scope, code size and the depth of review. See smart contract audit cost 2026 for typical ranges, or get an indicative figure from the audit cost calculator.

How do I get a quote from OtterSec?

Post your scope on Procur3 and send it to OtterSec as a private request, or open it to every matched firm and compare quotes.

Ready to work with OtterSec?

Send your scope to OtterSec privately, or open it to every matched firm and compare quotes side by side.