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Zealynx research

Security Research.

Public write-ups on the bugs, patterns, and protocols we audit. Engineer-to-engineer, no fluff.

9 results for "msg.value"

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When Every Check Passes but a Protocol Is Underbacked
ResearchSep 1

When Every Check Passes but a Protocol Is Underbacked

20 min read
Proxy Security Checklist: 33 Critical Upgradeability Checks
Smart contractsFeb 12

Proxy Security Checklist: 33 Critical Upgradeability Checks

22 min read
Liquity Protocol — DeFi Protocol Explained from Its Smart Contracts (Part 1)
DeFi analysisApr 2023 · Updated Dec 2023

Liquity Protocol — DeFi Protocol Explained from Its Smart Contracts (Part 1)

Liquity Protocol · Part 1 of 2
OWASP Smart Contract Top 10 2026: changes and audit guide
IndustryMay 4

OWASP Smart Contract Top 10 2026: changes and audit guide

29 min read
Smart Contract Upgradeability: UUPS vs Transparent vs Beacon
Smart contractsJan 29

Smart Contract Upgradeability: UUPS vs Transparent vs Beacon

19 min read
Divide and Conquer Auditing: Breaking Down Uniswap V2 to Find Critical DeFi Bugs
Audit opsDec 9, 2025

Divide and Conquer Auditing: Breaking Down Uniswap V2 to Find Critical DeFi Bugs

13 min read
Why Fuzz Testing Catches Bugs That Unit Tests Miss: Foundry Invariant Testing for DeFi
Smart contractsApr 17, 2024

Why Fuzz Testing Catches Bugs That Unit Tests Miss: Foundry Invariant Testing for DeFi

11 min read
Overflow & Underflow in Solidity: Real Audit Findings, Code Examples & Practice Exercise
Attack vectorsJun 13, 2023

Overflow & Underflow in Solidity: Real Audit Findings, Code Examples & Practice Exercise

19 min read
Phishing Attack in Web3: Why You Should Never Use tx.origin
Attack vectorsMar 7, 2023

Phishing Attack in Web3: Why You Should Never Use tx.origin

6 min read