
Oak Security
We help crypto projects secure their smart contracts and protocols
Oak Security is a Cyber Security Consulting Firm that offers security auditing services for a number of blockchains, with a special focus on third-generation blockchains and protocols, such as the Cosmos SDK/CosmWasm, Polkadot/Substrate and Flow/Cadence ecosystems.
Become one of 100+ projects that we audited with a combined market cap of over 15 billion USD.
We are hiring!
We have several open positions for qualified blockchain and smart contract security engineers to form part of our auditor pool (full-time and part-time).
Smart Contract Audits
Decentralized Application Security
Decentralized applications are prominent high-value targets for cybersecurity attacks with particular threat models and attack surfaces. Oak Security exists to solve the problem faced by decentralized application developers to secure their creations throughout the software lifecycle, from early planning to daily operations.
Cosmos SDK/CosmWasm
Oak Security is the number one provider of Cosmos SDK/CosmWasm audits.

Ethereum
Ethereum is the biggest platform for decentralized finance. Oak Security team members have been involved in Ethereum smart contract auditing since 2017 and have collected vast experience in anything from DeFi protocols to complex L2 solutions.

Emerging Platforms

Protocol Reviews
Blockchain security begins at the protocol level. With modular platforms allowing the development of application-specific blockchains and the emergence of blockchain interoperability, security reviews must be extended to these layers.



Cosmos SDK
Oak Security is a key security actor in the Cosmos ecosystem, with highly experienced staff in Cosmos SDK development and security reviews.
Interoperability Bridges
Blockchains used to be silos but have recently started to communicate with each other. The Oak security team has been involved with blockchain bridges since the early days, in research, development, and, most importantly, security.
Founder Team
Oak Security is the result of two domain experts in Computer Science and Economics getting together after years of collaborating to build a unique team to secure the new decentralized finance systems.

Philip Stanislaus
Managing Partner
MPhil Economics, Cambridge (UK)
Software Engineer since 2007
In Blockchain space since 2018
Experience: Dapper Labs/Flow, Polkadot/Web3 Foundation, Centrifuge
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Dr. Stefan Beyer
Managing Partner
Ph.D. in Computer Science
Has worked in Distributed Systems since 2004 (pre-Bitcoin!)
Blockchain security audits since 2018
More than 50 projects audited
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