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OXORIO

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About OXORIO

OXORIO delivers expert smart contract audits, zk-SNARK integrations, and security consulting to safeguard blockchain applications.

OXORIO is a boutique Web3 security firm specializing in smart contract audits, penetration testing, and blockchain vulnerability analysis. Built with precision and a focus on tailored services, OXORIO supports Web3 teams in identifying and mitigating vulnerabilities in critical decentralized applications, protocols, and infrastructure.


Operating as a security partner to leading projects like Aave, Lido, 1inch, and Polygon Village, OXORIO delivers rigorous, manual audit services backed by advanced tooling, interactive reports, and a client-specific knowledge base. The firm’s dedication to code quality, clarity, and transparency has made it one of the most respected auditing teams in the blockchain ecosystem.

OXORIO is a high-precision, full-spectrum smart contract auditing and Web3 security company with a proven track record of preventing multimillion-dollar exploits. With over $25 billion in Total Value Locked (TVL) across audited projects, the firm has built trust among high-profile clients in DeFi, liquid staking, L2s, DAOs, and blockchain infrastructure. OXORIO distinguishes itself by offering deep, tailored audits rather than generic reviews—placing quality, transparency, and precision above all.


What makes OXORIO unique is its commitment to quality over quantity. Each audit is conducted by a team of at least two experts, chosen specifically based on their experience with the project’s technology stack—whether it’s Solidity, Rust, Cairo, or Vyper. This approach allows them to deliver deep, customized audits instead of generic checklists. Audits cover not just smart contracts but deployment scripts, off-chain components, upgrade patterns, and protocol logic.


In addition to its core audit services, OXORIO also offers penetration testing, zero-knowledge proof verifications, and internal tool development for clients needing advanced security strategies. Their expertise spans everything from secure DeFi protocol launches to re-entrancy attack protection and fuzz testing. Each engagement ends with an interactive report, recommendations, and optional retesting, ensuring that security is not just assessed—but improved.


With a reputation built on trust, technical depth, and a transparent workflow, OXORIO has become the go-to choice for elite Web3 teams looking for top-tier blockchain security services.

OXORIO provides mission-critical security auditing and testing services that distinguish it from traditional audit firms in the Web3 ecosystem:


  • Tailored Audit Teams: Each project is assigned senior auditors experienced in the specific language and protocol—from Solidity and Rust to Cairo and Vyper.
  • High-Stakes Audit History: OXORIO has secured over $25 billion in TVL across DeFi, L2s, DAOs, and staking platforms, preventing major vulnerabilities.
  • Manual, Code-Deep Audits: All audits are manual and collaborative, ensuring thorough analysis beyond automated scanner limitations.
  • Penetration Testing & Red Teaming: OXORIO provides offensive testing against infrastructure and applications to uncover real-world attack vectors.
  • Zero-Knowledge Expertise: Specialized services for auditing ZK circuits, ZK-proofs, and cryptographic integrity of rollup designs.
  • Transparent Reports: Clients receive a clear, categorized report with severity levels, technical impact, mitigation steps, and GitHub-hosted issue tracking.
  • Interactive Engagement: Clients are involved throughout the process, with feedback cycles, Q&A sessions, and optional post-audit retesting.
  • Proven Trust: Chosen by top Web3 players like Aave, Lido, and 1inch for mission-critical protocol audits.

Getting started with OXORIO is straightforward and built around collaboration and clarity. Here's how you can begin working with one of the top Web3 security audit firms:


  • Step 1 – Visit the Website: Go to oxor.io and review their audit services, methodology, and previous reports.
  • Step 2 – Request an Audit: Use the contact form or email provided on the site to initiate a new project inquiry with details about your smart contracts and scope.
  • Step 3 – Scoping & Proposal: The OXORIO team will assess the codebase, define deliverables, set timelines, and share a custom proposal.
  • Step 4 – Audit Execution: The assigned audit team begins an in-depth review, manually analyzing your code for logical errors, vulnerabilities, and bad practices.
  • Step 5 – Reporting & Feedback: A detailed report is shared with categorized findings. You’ll receive access to discussion threads and GitHub issues for collaboration.
  • Step 6 – Remediation & Retesting: After your team implements fixes, OXORIO offers retesting services to confirm all vulnerabilities have been addressed.
  • Step 7 – Public Report (Optional): Once resolved, you can choose to publish the final audit report—often hosted on GitHub or linked from your project docs.

OXORIO FAQ

  • OXORIO focuses on highly customized, manual audits conducted by senior security experts familiar with your specific tech stack. Unlike firms that use automated tools and generic checklists, OXORIO provides deep code reviews, structured feedback cycles, and interactive remediation. Their workflow involves constant communication and prioritizes clarity and precision, ensuring clients truly understand their vulnerabilities and how to fix them.

  • Yes. OXORIO is one of the few auditing teams with in-house expertise in Cairo (used by StarkNet), Vyper (for Ethereum), and Rust (used in Solana and Cosmos). This allows them to support newer protocols and L2 ecosystems that go beyond Solidity. The team assigns auditors based on their experience with the language and tooling used in your project. More details can be found on oxor.io.

  • Yes. After delivering the initial audit report, OXORIO offers an optional retesting phase. This ensures that all issues—especially critical and high severity ones—have been addressed properly. The client submits the updated code, and OXORIO’s team re-verifies the changes. This process increases confidence and enables a public audit report to be released with accurate post-remediation status. You’ll also receive updated GitHub issue tracking for full transparency.

  • OXORIO offers specialized audits for zero-knowledge circuits, cryptographic primitives, and ZK-rollup logic. Their team includes experts with academic and industry backgrounds in cryptography who verify proof systems, check arithmetic correctness, and validate security assumptions. Whether it's Plonk, Groth16, or custom circuits, OXORIO provides thorough validation to ensure protocol integrity.

  • Yes. OXORIO maintains a public GitHub repository with examples of completed audits, redacted client names, and anonymized findings where needed. You can request access to these case studies by reaching out via the form on oxor.io. For open projects like Aave and Lido, publicly listed reports are also available on the clients’ documentation or GitHub profiles, showing OXORIO’s high standards and attention to detail.

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