Vendor
Cyfrin
Smart contract audits, penetration testing and security education, maker of Aderyn and Solodit
About
Cyfrin is a blockchain security company operated by Cyfrin Inc. It provides smart contract security audits, incident response, formal verification, penetration testing of web apps, APIs, infrastructure and crypto-native components, security competitions and ongoing security advisory for protocol teams. Its audit process starts with an assessment of codebase size and complexity and a timeline, continues with a review of in-scope code by security researchers who verify the impact of findings with proof-of-concepts, and ends with a preliminary report, mitigation by the client and a final report in which each issue is verified and updated. Cyfrin also sells enterprise security training and certifications and talent acquisition through its Updraft education platform. Its products include Aderyn, a Solidity vulnerability detector, Moccasin, a Vyper testing and development framework, the Solodit vulnerability database and the CodeHawks competition platform. The site lists supported chains including Ethereum, ZKsync, Arbitrum, Avalanche, BNB Chain, Base, Optimism, Polygon, Solana, TON, Sui, Aptos and Starknet, and completed audits are published on its public security reports page.
At a glance
- Offers smart contract audits, formal verification and incident response
- Sells penetration testing of web apps, APIs and infrastructure
- Maintains Aderyn (Solidity analyzer) and Moccasin (Vyper framework)
- Runs the Solodit vulnerability database and Updraft education platform
- Publishes completed audit reports on its website
- Services
- Audit
- Penetration testing
- Languages
- Solidity, Vyper
- Public audit reports
- cyfrin.io(opens in a new tab)
Cyfrin: frequently asked questions
- What services does Cyfrin offer?
- According to its public information, Cyfrin offers: Audit and Penetration testing.
- Which blockchains does Cyfrin work with?
- Cyfrin works with Ethereum, ZKsync, Arbitrum, Avalanche, BNB Chain, Base, Optimism, Polygon, Solana, TON, Sui, Aptos, and Starknet.
- Which smart contract languages does Cyfrin use?
- Cyfrin works with Solidity and Vyper.
- Is Cyfrin verified on smart-contract.com?
- Not yet. This listing was compiled from public information and Cyfrin has not claimed it or gone through the vetting process of smart-contract.com.
- How can I get a quote from Cyfrin?
- Describe your project once on smart-contract.com: you receive comparable quotes from vendors that match it, in the same format. Development and audit are always entrusted to two independent companies.
Where this information comes from
This listing was compiled from the public pages below and last reviewed on September 24, 2026. The company has not claimed it yet, is not a partner of smart-contract.com and has not been vetted.
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