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.
Read
Inside the April 2026 Anthropic MCP SDK design flaw: STDIO transport allows config-to-command-execution across Python, TypeScript, Java, Rust SDKs — by design.
Read
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.
Read
29-point Base L2 audit checklist: block timing exploits, address aliasing, dual gas fees, bridge vulnerabilities, sequencer threats, and fault proof risks.
Read
Compare Arbitrum, Optimism, and Polygon zkEVM security models. Fraud proofs, ZK validity proofs, upgrade multisigs, and sequencer risks — a data-driven L2 guide.
Read
Yearn V2 and V3 vault architecture, exploit case studies (yDAI, yUSDT, Cream), and defense patterns every DeFi auditor and integrator must know.
Read
Compare ERC-3643 and ERC-1400 for RWA compliance. See identity checks, partition tradeoffs, ACT risk, forced transfers, and when each token standard fits.
Read
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.
Read
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.
Read
Smart contract audit scoping guide. Seven deliverables auditors need, nSLOC pricing benchmarks, and the Rekt Test — cut your quote 15–30%.
Read
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.
Read
OWASP ASI04 (Agentic Supply Chain Vulnerabilities) explained: MCP Impersonation, malicious tools, trojanised connectors. Real CVEs, attack patterns, mitigations.
Read
Complete MCP vulnerability index: 16 disclosed breaches and 14+ CVEs since April 2025 across Anthropic, Cursor, Postmark — with OWASP ASI04 patterns. Updated weekly.
Read
How flash loans amplify oracle, donation, and reentrancy bugs into $200M+ DeFi exploits — Cetus, Penpie, KyberSwap, UwU Lend case studies plus defenses that hold.
Read
How attackers exploit DAO governance with flash loans, EVM opcode injection, and quorum exhaustion — plus audit strategies and defense architectures.
Read
How attackers exploit oracle price feeds in DeFi using flash loans, AMM imbalances, and governance subversion — with defense patterns for protocol architects.
Read
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.
Read
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.
Read
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.
Read
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.
Read
Shadow audits replay past public security contests on real protocol forks. Learn Web3 security the way top auditors did: reviewing graded contests, fast.
Read
MiCA is forcing EU crypto projects to take security seriously. Learn what the regulation actually requires — security audits, penetration testing, smart contract reviews — and how to prepare before regulators come knocking.
Read
Discover the 2026 Solidity Smart Contract Audit Manifesto. Learn why 'Lines of Code' pricing is dead, explore new smart contract audit costs, AI-driven security, and the essential audit readiness checklist for protocol leaders.
Read
Master Uniswap v4's four swap types: zeroToOne, oneToZero, exactInputForOutput, and exactOutputForInput. Learn to implement SwapParams correctly and interpret BalanceDelta results securely.
Read
OpenClaw security guide for teams deploying personal AI agents. Learn the top risks, prompt injection, malicious skills, exposed admin panels, and the hardening checklist that prevents agent compromise.
Read
Q64.96 fixed-point math powers Uniswap V3/V4 pricing. Learn how sqrtPriceX96 overflows happen and how Zealynx auditors catch them before they cost you.
Read
EVM proxy pattern security: UUPS, Transparent, Beacon, and Diamond (EIP-2535) compared. Storage collision exploits ($6M+), gas benchmarks, and audit checklist.
Read
A long form Solana security guide covering 45 exploit checks across account validation, CPI safety, PDAs, Token-2022, and audit prep for Anchor and native programs.
Read
Builder-first Hyperliquid architecture guide covering HyperBFT, HyperCore, HyperEVM, execution boundaries, and launch audit risks.
Read
100+ cross-chain bridge security checks. Prevent exploits like Ronin ($625M), Wormhole ($320M), and Nomad ($190M). For bridge builders, auditors, and DeFi teams.
Read
A comprehensive Q&A on Uniswap v4 Hooks, covering technical implementation, security considerations, and architecture from the Uniswap Hook Incubator Cohort 2.
Read
Compare Move, Rust (Solana), and Solidity (EVM) architecture. Discover how L1 language choice impacts smart contract security, reentrancy risks, and audit requirements.
Read
Uniswap v4 security guide for hook risk, singleton architecture, and flash accounting. See what builders should audit before launch.
Read