Zealynx Security

Zealynx Security is a boutique blockchain security firm founded in March 2024 by Carlos Vendrell (Bloqarl) in Wrocław, Poland. Trusted by 30+ protocols, Zealynx delivers direct access to senior auditors — not a ticket queue — making it a standout choice for DeFi, NFT, and DAO projects seeking thorough and transparent security reviews. The firm has completed 40+ audits, identified 260+ vulnerabilities, and developed 30,000+ lines of production smart contract code.

Core Products/Services

Zealynx offers four primary service lines across the blockchain security and development spectrum:

Smart Contract Audits — Manual line-by-line code review combined with static analysis (Slither, Aderyn) and fuzzing (Foundry) for EVM-compatible chains (Ethereum, BNB Chain, Polygon, Arbitrum, Optimism, Avalanche, Base, Monad, Berachain) and Solana. Audit engagements run 1–4 weeks and include a detailed findings report with severity ratings, mitigation guidance, and a 2-week post-engagement support period. Language coverage spans Solidity, Rust, Cairo, Sway, and TypeScript.

Application Security Audits — White-box and black-box penetration testing for Web3 dApps, APIs, and infrastructure. Scope covers frontend security (XSS, client-side bypasses), API security (injection attacks, CORS misconfigurations), and infrastructure (cloud, containers, node configurations). The firm also offers dedicated Web3 Wallet Security assessments.

AI Red Team Audits — Adversarial ML attack simulation for AI systems, including LLMs, computer vision models, recommendation engines, and fraud detection systems. Testing follows the OWASP Top 10 for Agentic Applications 2026 framework, covering prompt injection, model inversion, data poisoning, and adversarial evasion.

Smart Contract Development — Secure-by-design Solidity and Solana smart contract development for DeFi protocols, token contracts, NFT projects, DAO governance, staking systems, and cross-chain solutions. Notable development clients include Inverter Network, Side.xyz, and Mangrove.

Key Strengths

Zealynx differentiates through its Zealynx Portal — a proprietary audit dashboard providing clients with a live vulnerability feed, CI/CD integration, direct engineer access, and living security documentation. The firm is led by Carlos (Bloqarl), a Uniswap Hackathon winner with 10+ years of software development experience, and Fernando (Maverick), a Principal Red Team Specialist at Red Hat with CWEE and OSCP certifications. The security research team maintains a 49% rate of high/medium severity issues found per audit — significantly above industry average.

Notable Clients/Projects

Clients include Lido Finance, BadgerDAO, Wedefin, Monadex, Golden Grid, Matchain, Ipal Network, Paymatic, Ribbon, Glif, Ample Protocol, and Paragon. Zealynx has also acted as an auditor contractor for leading security firms including Cyfrin, Pashov Audit Group, Sherlock, and Immunefi.

Why Choose Zealynx

Zealynx combines the thoroughness of a boutique firm with enterprise-grade security tooling. Clients get direct access to the senior auditors performing their review — not account managers. The Zealynx Portal provides unprecedented transparency into the audit process. With 60,000+ lines of code audited, 600+ tests implemented, and a track record of zero critical bugs post-launch for audited protocols, Zealynx is a trusted partner for Web3 teams at any stage.