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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Five systemic vectors targeting AI trading bots — adversarial ML, data poisoning, prompt injection, API exploits, supply chain compromise — with strategic mitigation.
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How prompt injection drains AI-controlled DeFi vaults. Freysa and AiXBT exploits analyzed, EVMbench data, and defense architecture for autonomous agents.
ReadHow attackers exploit DAO governance with flash loans, EVM opcode injection, and quorum exhaustion — plus audit strategies and defense architectures.
ReadYour complete guide to EthCC 2026 in Cannes. Key dates, side events, networking tips, and how Web3 builders can make the most of the conference.
ReadHow 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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Learn how to defend your DeFi protocol from sandwich attacks and MEV extraction with PBS, encrypted mempools, intent architectures, and Uniswap v4 hooks.
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ERC-4337 account abstraction introduces programmable trust boundaries that break assumptions baked into decades of wallet security thinking. Here's where teams get it wrong.
Read![EthCC[9] in Cannes: Which Security Tracks Actually Matter for Protocol Teams](/_next/image?url=%2Fpost%2Fethcc-security-guide%2Fcover.png&w=3840&q=75&dpl=dpl_Cec8xuGMsuDNgpACJ9JiR8L7L9CD)
A developer-focused guide to EthCC[9] in Cannes — which security tracks, ZK sessions, and side events matter most for protocol teams shipping on EVM and Solana.
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DNS hijacks, supply chain attacks, and UI social engineering bypass smart contract security entirely. Learn how attackers exploit web apps to drain DeFi protocols and how to stop them.
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MiCA enforcement is live and NCAs are issuing licenses now. If your codebase isn't audit-ready, your CASP application isn't ready either. Here's exactly what you need to fix before you request a quote.
ReadCompare 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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A practical compliance roadmap for DeFi protocols navigating Europe's new regulatory landscape. Learn how MiCA affects decentralized protocols and implement a 6-month compliance strategy.
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