Dev.to Security 🔐 Cybersecurity 👁 0 📖 1 min read

How One Missing Assert Drained $1.14M From Aftermath Finance — A Signed Integer Exploit on Sui

A technical breakdown of the Aftermath Finance perpetuals exploit (April 29, 2026). How a negative fee value bypassed validation, inflated collateral, and allowed an attacker to drain $1.14M USDC in 36 minutes — and what

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mehvetero
mehvetero

Posted on Aug 1

How One Missing Assert Drained $1.14M From Aftermath Finance — A Signed Integer Exploit on Sui

A technical breakdown of the Aftermath Finance perpetuals exploit (April 29, 2026). How a negative fee value bypassed validation, inflated collateral, and allowed an attacker to drain $1.14M USDC in 36 minutes — and what a single line of code would have prevented.

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