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Web3 Security Insights

Deep dives into smart contract vulnerabilities, DeFi exploit analysis, and security best practices — written by the team that built a 1,200+ exploit pattern database.

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🔄Smart Contract Security

Proxy Upgrade Vulnerabilities: When Upgradability Becomes a Weakness

How upgradeable proxy patterns create security risks — storage collisions, uninitialized proxies, and selfdestruct attacks. Learn to implement safe upgrade patterns.

Kennedy OwiroJan 2210 min read
Smart Contract Security

Gas Griefing and Denial of Service: When Smart Contracts Run Out of Gas

How gas-based attacks can freeze smart contracts, block withdrawals, and halt protocol operations. Learn about unbounded loops, block gas limits, and griefing protection.

Kennedy OwiroJan 198 min read
⚠️Smart Contract Security

Unchecked Return Values: The Overlooked Vulnerability That Keeps Costing DeFi

Why ignoring return values from external calls and token transfers leads to silent failures and fund losses. Learn the safe patterns for handling call results in Solidity.

Kennedy OwiroJan 167 min read
🔗Smart Contract Security

Cross-Chain Security: The Growing Risks of Multi-Chain DeFi Architecture

As protocols expand across chains, new attack surfaces emerge. Learn about message verification, replay attacks, liquidity fragmentation, and cross-chain composability risks.

Kennedy OwiroJan 139 min read
Smart Contract Security

Block Timestamp Manipulation: Time-Based Attacks on Smart Contracts

How miners and validators can manipulate block timestamps to exploit time-dependent smart contract logic. Learn about timestamp dependence, randomness, and secure alternatives.

Kennedy OwiroJan 107 min read
🧩DeFi Security

DeFi Protocol Logic Bugs: When Business Logic Breaks and Millions Disappear

Beyond standard vulnerability categories — how flawed economic assumptions, accounting errors, and edge-case bugs in DeFi protocol logic lead to catastrophic losses.

Kennedy OwiroJan 710 min read
📋Best Practices

The Complete Smart Contract Security Audit Checklist for 2026

A comprehensive checklist for auditing smart contracts — covering access control, business logic, external integrations, gas optimization, and deployment security across Solidity and Rust.

Kennedy OwiroJan 412 min read
🦀Solana Security

Solana Program Security: A Comprehensive Guide for Rust Developers

Security best practices for Solana programs — covering account validation, PDA security, CPI risks, signer verification, and common Anchor framework pitfalls.

Kennedy OwiroJan 111 min read
🪙Smart Contract Security

ERC-20 Token Security: Common Pitfalls That Cost Projects Everything

From approval frontrunning to fee-on-transfer bugs and rebasing tokens — the ERC-20 pitfalls that break DeFi integrations and lose user funds.

Kennedy OwiroDec 299 min read

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