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ChainSecurity

Zurich smart contract audit firm reviewing DeFi, stablecoin, bridge and L1/L2 code

Public information

About

ChainSecurity is a smart contract security firm operated by Decentralized Security AG, based at Thurgauerstrasse 40 in Zurich, Switzerland. The company states that it was founded by ETH Zurich researchers and developed within PwC Switzerland, and it describes itself as a PwC Switzerland spin-off. Its core service is the smart contract audit, with custom reviews that assess business logic, system behaviour and interdependencies rather than relying on checklists. For institutional clients it adds system design advisory, confidential workshops for executives and a design-to-audit service that starts at the whitepaper stage. Its public report library covers lending, stablecoins, DEXs and AMMs, bridges, governance, oracles, restaking, real-world assets, compilers, wallets and account abstraction, zero knowledge and privacy, and base layers. Reports cover Ethereum and EVM code, including Vyper, as well as Solana and Starknet projects, and the firm states that it has delivered audits on Sui and Aptos. Engagements also include reviews of off-chain components and deployment validation. The team publishes technical research on its blog, for example on rebasing tokens and on bugs in TypeScript blockchain code.

At a glance

  • Operated by Decentralized Security AG, Zurich
  • Custom reviews of business logic and system interdependencies
  • Searchable public report library on its website, filterable by protocol and topic
  • Covers EVM, Solana and Starknet code, with stated audits on Sui and Aptos
  • Institutional services: design advisory, executive workshops, design-to-audit
  • Reviews off-chain components and validates deployments
Services
  • Audit
Languages
Solidity, Vyper, Rust, Cairo, Move
Headquarters
Switzerland

ChainSecurity: frequently asked questions

What services does ChainSecurity offer?
According to its public information, ChainSecurity offers: Audit.
Which blockchains does ChainSecurity work with?
ChainSecurity works with Ethereum, Solana, Starknet, Sui, and Aptos.
Which smart contract languages does ChainSecurity use?
ChainSecurity works with Solidity, Vyper, Rust, Cairo, and Move.
Where is ChainSecurity based?
ChainSecurity is headquartered in Switzerland.
Is ChainSecurity verified on smart-contract.com?
Not yet. This listing was compiled from public information and ChainSecurity has not claimed it or gone through the vetting process of smart-contract.com.
How can I get a quote from ChainSecurity?
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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