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The Private Key Pandemic: Why 60% of 2026's DeFi Losses Come From Off-Chain Fail

BACKGROUND
1 SIGNALFIRST DETECTED 24 March 2026
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How the story developed
Other feeds and industry voices
28 Mar
The YieldBlox $10M Oracle Poisoning: How One Trade in a Dead Market Drained an Entire Lending Pool — And the 5-Defense Pattern Every Protocol Needs

<p>On February 22, 2026, a single trade worth barely $5 on the Stellar DEX inflated a token's price by 100×, allowing an attacker to borrow $10.97 million against worthless

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24 Mar
The 2026 DeFi Pre-Launch Security Checklist: 7 Attack Surfaces Your Audit Probably Missed

<p>The OWASP Smart Contract Top 10 reshuffled in 2026 — reentrancy dropped from #2 to #8, proxy vulnerabilities entered the chart, and business logic flaws climbed. But the real

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18 May
Supply Chain Attacks Aren't Just a Big Library Problem — Here's What You Can Do Today

<p>In May 2026, a worm called Shai-Hulud compromised 42 TanStack packages — including <code>@tanstack/react-router</code>, a library sitting in millions of JavaScript projects. It

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15 Oct
Cross-Chain Bridge Risk Assessment: MEXC

<h1> Cross-Chain Bridge Risk Assessment: MEXC </h1> <p><strong>Target Protocol</strong>: MEXC (TVL: $5363.2M)</p> <h1> Cross‑Chain Bridge Risk Assessment – MEXC </h1>

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29 Apr
8 Open-Source Security Tools Every Developer Should Be Using in 2026

<p>Most developer security content is a checklist you'll never finish.</p> <p>OWASP Top 10. Rotate your secrets. Use HTTPS. Thanks, very helpful.</p> <p><strong>The real gap in

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19 May
Why Agent Payment Authorization Cannot Come from the Agent Itself

<p>There is a moment in security design when a single observation changes everything. NanoClaw 2.0 shipped recently with a capability that stops most developers cold: a gateway

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14 Apr
Your AI Coding Assistant Is Watching Your Clipboard: A 2026 Secret Hygiene Playbook

<p>You pasted a failing <code>curl</code> into Copilot chat to ask why it returns 401. The paste included the <code>Authorization: Bearer eyJhb...</code> header. Your token is now

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17 May
The Week the Toolchain Became the Kill Chain

<p>Three incidents landed in five days this week. Different attack surfaces, different techniques, different threat actors. What they have in common is that none of them required

REPORT · WHEN · Dev.toOPEN STORY
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