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Zealynx research

Security Research.

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

48 results for "Web3 Security"

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Web3 Security Communities in 2026: Where Developers, Auditors, and Founders Actually Level Up
IndustryJul 8

Web3 Security Communities in 2026: Where Developers, Auditors, and Founders Actually Level Up

8 min read
Shadow Audits: How to Learn Web3 Security by Breaking Real Protocol Forks
NewsApr 29

Shadow Audits: How to Learn Web3 Security by Breaking Real Protocol Forks

15 min read
Why TypeScript Audits Are Critical for Web3 Security & DeFi dApp Protection
AI securitySep 10, 2025

Why TypeScript Audits Are Critical for Web3 Security & DeFi dApp Protection

5 min read
Why AI Penetration Testing Is Now Critical in Web3 Security
AI securityJun 6, 2025

Why AI Penetration Testing Is Now Critical in Web3 Security

7 min read
Gamified Learning in Web3: Why Ranks, Leaderboards, and Lynx Actually Work
Smart contractsMay 18

Gamified Learning in Web3: Why Ranks, Leaderboards, and Lynx Actually Work

11 min read
EthCC 2026 Cannes: Security Guide for Web3 Builders
IndustryMar 19

EthCC 2026 Cannes: Security Guide for Web3 Builders

9 min read
Supply Chain Attacks in Web3 — From NPM to Protocol Exploits
AI securityMay 6

Supply Chain Attacks in Web3 — From NPM to Protocol Exploits

12 min read
Quadratic Funding Explained: Ethereum Security QF Round and Zealynx Academy
NewsApr 23

Quadratic Funding Explained: Ethereum Security QF Round and Zealynx Academy

14 min read
Zealynx Academy Is Public: Build, Audit, and Launch Web3 Protocols
NewsApr 23

Zealynx Academy Is Public: Build, Audit, and Launch Web3 Protocols

20 min read
Indirect prompt injection: the Web3 agent attack chain
AI securityMay 15

Indirect prompt injection: the Web3 agent attack chain

26 min read
The Web3 Founder's Survival Guide: Everything No Engineering Curriculum Teaches
IndustryMay 11

The Web3 Founder's Survival Guide: Everything No Engineering Curriculum Teaches

16 min read
When to audit a smart contract: The 2026 security timeline
Audit opsApr 27

When to audit a smart contract: The 2026 security timeline

26 min read
MiCA Regulation & Security: What Every Crypto Founder Needs to Know
IndustryFeb 5

MiCA Regulation & Security: What Every Crypto Founder Needs to Know

12 min read
Auditing AI Trading Bots: Security Framework
AI securityJul 7

Auditing AI Trading Bots: Security Framework

16 min read
Zealynx Academy vs Cyfrin Updraft, Alchemy University, and LearnWeb3: Honest Comparison
NewsMay 21

Zealynx Academy vs Cyfrin Updraft, Alchemy University, and LearnWeb3: Honest Comparison

13 min read
Introducing Your First 90 Days in Web3: A Free, Guided Path to Actually Understand the Space
NewsJul 1

Introducing Your First 90 Days in Web3: A Free, Guided Path to Actually Understand the Space

16 min read
Why a Smart Contract Audit Firm Built a Free Beginner Web3 Course
NewsJul 1

Why a Smart Contract Audit Firm Built a Free Beginner Web3 Course

16 min read
Can’t Afford a Smart Contract Audit? 7 Options | Zealynx
Audit opsJul 2026 · Updated Oct 2026

Can’t Afford a Smart Contract Audit? 7 Options | Zealynx

10 min read
AI Agents Holding Crypto Wallets: The Security Model
AI securityJul 3

AI Agents Holding Crypto Wallets: The Security Model

15 min read
New to Web3? The Exact 90-Day Path We'd Give a Complete Beginner
NewsJul 1

New to Web3? The Exact 90-Day Path We'd Give a Complete Beginner

14 min read
Agentic DeFi security: when AI agents control treasury, trading, and liquidations
AI securityJun 1

Agentic DeFi security: when AI agents control treasury, trading, and liquidations

21 min read
Why Learning Web3 by Building Beats Watching Videos
NewsMay 25

Why Learning Web3 by Building Beats Watching Videos

12 min read
EIP-7702 wallet security: what auditors check after Pectra
Smart contractsMay 18

EIP-7702 wallet security: what auditors check after Pectra

26 min read
Layer 2 security under the hood: proof systems, upgrade keys, and what actually protects your funds
Smart contractsApr 9

Layer 2 security under the hood: proof systems, upgrade keys, and what actually protects your funds

17 min read
AI trading bot security: 5 critical attack vectors in DeFi
AI securityMar 30

AI trading bot security: 5 critical attack vectors in DeFi

21 min read
When AI controls DeFi vaults, prompt injection becomes remote code execution
AI securityMar 25

When AI controls DeFi vaults, prompt injection becomes remote code execution

16 min read
EthCC[9] in Cannes: Which Security Tracks Actually Matter for Protocol Teams
IndustryMar 11

EthCC[9] in Cannes: Which Security Tracks Actually Matter for Protocol Teams

14 min read
From EVM to SVM: A senior security researcher's guide to Solana in 2026
Smart contractsFeb 20

From EVM to SVM: A senior security researcher's guide to Solana in 2026

11 min read
When Web2 Infrastructure Breaks DeFi: The Hidden Attack Surface
AI securityFeb 16

When Web2 Infrastructure Breaks DeFi: The Hidden Attack Surface

13 min read
GameFi Security Checklist: 55+ Critical P2E Exploit Checks
Smart contractsFeb 14

GameFi Security Checklist: 55+ Critical P2E Exploit Checks

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

Proxy Security Checklist: 33 Critical Upgradeability Checks

22 min read
Move vs. Rust vs. Solidity: The Ultimate L1 Blockchain Security Comparison (2026)
Smart contractsJan 23

Move vs. Rust vs. Solidity: The Ultimate L1 Blockchain Security Comparison (2026)

12 min read
Solana GambleFi Security: Why VRF and Zero-Edge Models Replace Casino Black Boxes
Smart contractsJan 20

Solana GambleFi Security: Why VRF and Zero-Edge Models Replace Casino Black Boxes

9 min read
ERC-1400 Explained: Security Token Standard for RWA
Smart contractsJan 5

ERC-1400 Explained: Security Token Standard for RWA

9 min read
EIP-7702 Security: 5 Delegate Contract Bugs and the Fix for Each
Smart contractsOct 25

EIP-7702 Security: 5 Delegate Contract Bugs and the Fix for Each

18 min read
AI Agent Wallet Security: 5 Ways Someone Empties It (and the Fix for Each)
AI securityOct 22

AI Agent Wallet Security: 5 Ways Someone Empties It (and the Fix for Each)

20 min read
GENIUS Act Stablecoin Security: 5 Things Your Contract Must Get Right
Smart contractsOct 19

GENIUS Act Stablecoin Security: 5 Things Your Contract Must Get Right

16 min read
x402 Security: 5 Ways a Paid API Gets Drained (and the Fix for Each)
AI securityOct 16

x402 Security: 5 Ways a Paid API Gets Drained (and the Fix for Each)

16 min read
How to Build Compound V2 From Scratch (18 Sections, Line by Line)
DeFi analysisMay 28

How to Build Compound V2 From Scratch (18 Sections, Line by Line)

13 min read
How to Scope a Smart Contract Audit: What Auditors Need
Audit opsApr 23

How to Scope a Smart Contract Audit: What Auditors Need

23 min read
Post-audit security: why the audit is a commit hash, not a security posture
Audit opsApr 22

Post-audit security: why the audit is a commit hash, not a security posture

21 min read
Yearn vault security: V2 vs V3 architecture, exploits, and defense patterns
DeFi analysisApr 20

Yearn vault security: V2 vs V3 architecture, exploits, and defense patterns

16 min read
The $43 Billion Identity Theft Problem: How Blockchain Could Protect Your Wealth
IndustryJul 29, 2024

The $43 Billion Identity Theft Problem: How Blockchain Could Protect Your Wealth

4 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
Who Eats the Wei: Rounding as a Security Boundary in Uniswap V3
DeFi analysisAug 10

Who Eats the Wei: Rounding as a Security Boundary in Uniswap V3

Uniswap V3 · Part 3 of 9
Moving Averages in DeFi: Security Vulnerabilities and Attack Prevention
DeFi analysisFeb 10

Moving Averages in DeFi: Security Vulnerabilities and Attack Prevention

14 min read
Uniswap’s Q64.96 Explained: Essential Security Tips for Hook Developers
DeFi analysisJan 30

Uniswap’s Q64.96 Explained: Essential Security Tips for Hook Developers

11 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