Archive - Defendor

Auditor's golden system

Write notes like this. Find more bugs.

Mar 30 • Arsen

Pre-Quoted. Not Safe.

Most people missed this. Here's exactly what was wrong.

Mar 23 • Arsen

Where the Money Went?

Why blind calldata forwarding breaks DeFi vaults

Mar 19 • Arsen

You understand the code. Now what?

That's not the end. That's the starting line.

Mar 16 • Arsen

How to approach contests in 2026

How to approach contests correctly

Mar 2 • Arsen

February 2026

Top-1 Must-Have Skill for Security Researchers

This one is significant. If You believe you’ve found all the bugs — and you stop early, you've failed

Feb 8 • Arsen

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