15h ago · 4 min read · ERC-20 vs ERC-721 vs ERC-1155: When to Use Each Token Standard Most projects pick a standard and never think about it again. That's how you end up with an NFT collection that costs $200 per mint because you chose ERC-721 instead of ERC-1155. The Par...
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1d ago · 5 min read · On March 5, 2026, an attacker turned 135 BRO tokens into 567 million — then drained $2.7 million in SolvBTC from Solv Protocol's BitcoinReserveOffering vault. The weapon: a callback-driven double-mint vulnerability hiding in the intersection of ERC-3...
Join discussion1d ago · 4 min read · Signature Replay Attacks in Solidity: Why Your Metatransactions Are Vulnerable by Default If you've ever built a REST API in Java or Go, you know about idempotency keys. You append a unique identifier to a request so that if a client accidentally se...
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1d ago · 6 min read · Proxy upgradeability bugs are responsible for over $500M in cumulative DeFi losses. The OWASP Smart Contract Top 10: 2026 added "Proxy & Upgradeability Vulnerabilities" (SC10) as a brand-new category — recognition that this bug class is no longer nic...
Join discussion2d ago · 4 min read · Reading a Smart Contract Is Just Reading Source Code—Why Are You Intimidated? When I first moved from backend development to Web3, someone asked me to "audit" a DeFi protocol. I panicked. I'd never seen a smart contract. But then I realized: I'd bee...
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4d ago · 12 min read · A practical security guide for developers using TLOAD/TSTORE — with the SIR.trading exploit dissected and defense patterns for Uniswap V4 hooks, flash accounting, and beyond. Why Transient Storage Is a Ticking Time Bomb EIP-1153 landed with the Denc...
Join discussion5d ago · 5 min read · Cross-Chain Bridges: The Distributed Consensus Problem Nobody Talks About When you work with traditional databases, moving data between systems is solved with a simple principle: one source of truth. Your PostgreSQL database is the authoritative rec...
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6d ago · 4 min read · The Upgradeable Contract Kill Chain: How Uninitialized Proxies Became DeFi's $200M+ Recurring Nightmare From Parity's $150M freeze to Ronin's $12M drain — the same initialization bug keeps claiming victims. Here's why, and how to stop it. Every DeFi...
Join discussion6d ago · 5 min read · Solidity Gas Optimization: 10 Techniques to Reduce Transaction Costs When I first deployed a liquidity pool contract to mainnet, my swap function cost 180k gas. A colleague casually mentioned they'd seen similar logic run for 85k on another protocol...
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Mar 13 · 7 min read · Two Incidents, 48 Hours, $76 Million Between March 10–12, 2026, Aave—the protocol that just crossed $1 trillion in lifetime loans—suffered back-to-back incidents totaling roughly $76 million in user losses. Neither involved an external attacker. Both...
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