Public write-ups on the bugs, patterns, and protocols we audit. Engineer-to-engineer, no fluff.
Gamification in learning often feels hollow. Here's why Zealynx Academy's rank and leaderboard system is different — and why it produces verifiable reputation, not points for points' sake.
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Inside the April 2026 Anthropic MCP SDK design flaw: STDIO transport allows config-to-command-execution across Python, TypeScript, Java, Rust SDKs — by design.
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TheDAO Security Fund awarded the ETHSecurity Badge to Ethereum security contributors. Holders get 4x matching impact in the Ethereum Security QF round, open through May 14, 2026.
ReadGamification in learning often feels hollow. Here's why Zealynx Academy's rank and leaderboard system is different — and why it produces verifiable reputation, not points for points' sake.
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29-point Base L2 audit checklist: block timing exploits, address aliasing, dual gas fees, bridge vulnerabilities, sequencer threats, and fault proof risks.
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Compare Arbitrum, Optimism, and Polygon zkEVM security models. Fraud proofs, ZK validity proofs, upgrade multisigs, and sequencer risks — a data-driven L2 guide.
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Yearn V2 and V3 vault architecture, exploit case studies (yDAI, yUSDT, Cream), and defense patterns every DeFi auditor and integrator must know.
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Compare ERC-3643 and ERC-1400 for RWA compliance. See identity checks, partition tradeoffs, ACT risk, forced transfers, and when each token standard fits.
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Step-by-step guide to building your first Uniswap V4 hook. Learn the essential libraries, contract structure, hook permissions, and critical security considerations for DeFi developers.
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The 2026 security timeline for Web3 protocols: when to audit at design, dev, pre-launch, and post-launch — plus real lead times, audit costs, and launch buffer rules.
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Smart contract audit scoping guide. Seven deliverables auditors need, nSLOC pricing benchmarks, and the Rekt Test — cut your quote 15–30%.
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Audits attest to a commit hash, not protocol safety. Learn how monitoring, invariants, runbooks, and OpSec close the gap — with Euler, Nomad, Ronin, and Radiant case studies.
ReadInside the April 2026 Anthropic MCP SDK design flaw: STDIO transport allows config-to-command-execution across Python, TypeScript, Java, Rust SDKs — by design.
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OWASP ASI04 (Agentic Supply Chain Vulnerabilities) explained: MCP Impersonation, malicious tools, trojanised connectors. Real CVEs, attack patterns, mitigations.
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Complete MCP vulnerability index: 16 disclosed breaches and 14+ CVEs since April 2025 across Anthropic, Cursor, Postmark — with OWASP ASI04 patterns. Updated weekly.
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How flash loans amplify oracle, donation, and reentrancy bugs into $200M+ DeFi exploits — Cetus, Penpie, KyberSwap, UwU Lend case studies plus defenses that hold.
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How attackers exploit DAO governance with flash loans, EVM opcode injection, and quorum exhaustion — plus audit strategies and defense architectures.
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How attackers exploit oracle price feeds in DeFi using flash loans, AMM imbalances, and governance subversion — with defense patterns for protocol architects.
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Most Web3 founders are technical and ship great code, then watch the protocol die to non-code problems. Tokenomics, fundraising, governance, regulatory, GTM — this is what kills teams.
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The 2026 OWASP Smart Contract Top 10 elevated business logic to #2 and added proxy & upgradeability at #10. Here's what changed and how to audit.
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Your complete guide to EthCC 2026 in Cannes. Key dates, side events, networking tips, and how Web3 builders can make the most of the conference.
ReadTheDAO Security Fund awarded the ETHSecurity Badge to Ethereum security contributors. Holders get 4x matching impact in the Ethereum Security QF round, open through May 14, 2026.
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Krait is the Zealynx pre-audit readiness engine. Catch the 12 finding categories that inflate smart contract audit quotes by 30% — locally, free, before booking.
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Shadow audits replay past public security contests on real protocol forks. Learn Web3 security the way top auditors did: reviewing graded contests, fast.
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The Zealynx Client Portal gives DeFi teams real-time audit tracking, secure file sharing, and direct auditor access — no more email threads or PDF drops.
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AMM security deep dive Part 2: how Uniswap V2–V4, Curve, and Balancer handle capital efficiency — and the slippage, sandwich, and oracle manipulation risks each introduces.
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Deep dive into the foundations of constant-product AMMs. Learn the math, smart contract building blocks, and core security risks behind decentralized trading protocols.
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Zealynx is a founder-led Web3 security firm. 33+ audits across 30+ protocols on EVM and Solana, smart contract audits, penetration testing, AI security, and the Zealynx Audit Grants program.
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Discover the 2026 smart contract audit process for DeFi protocols. Learn how AI and human expertise combine for advanced security, common vulnerabilities, and how to prepare your project for a successful audit.
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Smart contract audits miss dApp-layer bugs. Zealynx TypeScript audits cover frontend logic, API endpoints, and wallet flows — the layer most firms ignore.
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Discover how a Zealynx intern achieved 8th place in the Burve Protocol contest on Sherlock, identifying 3 of 9 total findings through systematic methodology, modern tooling, and mentorship.
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AI is already integrated into DAOs, dApps, and smart contracts. Find out why AI red teaming is the next frontier in Web3 cybersecurity and compliance.
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Step-by-step guide to writing a custom Aderyn detector in Rust: AST traversal, Solidity pattern matching, and publishing your first static analysis rule — Zealynx.
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Identity theft cost Americans $43 billion in 2023. Learn how blockchain-based digital identity could fortify your finances, unlock new opportunities, and open global economic doors — with real-world results from Estonia's digital pioneer program.
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Learn how to prevent front-running in ERC20 smart contracts using safer allowance methods and secure coding practices. Protect your tokens from exploits.
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Discover how our team secured a top 5 position in the Cyfrin CodeHawks contest, finding critical vulnerabilities and earning a substantial reward in just two days
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