Chain Defenders
Chain Defenders is a blockchain security firm known for deep protocol-level audits across DeFi, DEX, Token. This profile aggregates its audit record, 400+ findings and notable clients, so you can evaluate fit before requesting a competitive quote through Procur3.
- Audits
- 40+
- Findings logged
- 400+
- all severities
- Crit + high + med
- 100+
- material findings
Overview
About Chain Defenders
Chain Defenders is a blockchain security firm specialising in smart contract audits and protocol-level security reviews. The team works primarily in Solidity, covering engagements across Ethereum, BNB Chain, Polygon and related ecosystems. Core areas of expertise include DeFi, DEX, Token, NFT.
With 40+ audits on record, Chain Defenders has worked with notable protocols including Phi. The firm's review history provides a transparent track record that teams can evaluate before engaging.
Through Procur3, teams can put their scope to Chain Defenders alongside other matched firms and receive a competitive quote without a three-week sales cycle.
- Languages
- Solidity
- Chains
- Ethereum, BNB Chain, Polygon, Arbitrum
- Expertise
- DeFi, DEX, Token, NFT
- Services
- Smart Contract Audit, Pre-Audit Review, AI Security Analysis
Track record
Findings by severity
| Critical, high & medium | 100+ | 25% |
| Low, informational & other | ~300 | 75% |
Across 40+ audits, Chain Defenders has logged 400+ findings, of which 100+ were rated critical, high or medium, roughly 25% of the total.
Chain Defenders publishes no low and informational count; that row is the total minus the crit/high/med figure.
Figures are updated periodically and may not include every engagement. Severity labels follow each report's own classification.
Selected work
Notable clients
- PhiL2 / Ecosystem
FAQ
Questions about Chain Defenders
Where can I find Chain Defenders' audit reports?
Chain Defenders publishes its work on its website. Procur3 doesn't host Chain Defenders' reports.
What does Chain Defenders audit?
Chain Defenders lists Smart Contract Audit, Pre-Audit Review and AI Security Analysis across Solidity, and has published work on Ethereum, BNB Chain, Polygon and Arbitrum.
How much does a Chain Defenders audit cost?
Procur3 doesn't hold published pricing for Chain Defenders. 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 Chain Defenders?
Post your scope on Procur3 and send it to Chain Defenders as a private request, or open it to every matched firm and compare quotes.
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