The $110 Million DeFi Exploit That Broke Crypto Law


In October 2022, Avraham Eisenberg drained $110 million from Mango Markets, a Solana-based DEX → not by hacking code, but by exploiting its price oracle.
How It Worked:
🔹 Deposited ~$5M, opened both sides of an MNGO perp trade
🔹 Pumped MNGO ~1,300% on thin-liquidity exchanges
🔹 Oracle fed the fake price back → inflated his collateral
🔹 Borrowed $110M against it → withdrew everything
He even voted himself a $47M "bug bounty" in the DAO governance vote, then called it a "highly profitable trading strategy." 🤯
The Legal Twist:
🔹 April 2024 → convicted (first-ever crypto open-market manipulation case)
🔹 May 2025 → judge VACATED all fraud convictions (no terms of service = no fraud)
🔹 But still jailed 52 months → unrelated criminal material found on his seized devices
Update: Prosecutors are now appealing the acquittal (Jan 2026). Case NOT closed.
The Lesson for DeFi →
"Code is law" cuts both ways. Permissionless protocols with weak oracles + thin liquidity = exploit waiting to happen. Always check oracle design before trusting TVL.
Bookmark This. Thank Me Later. 🔖
SOL-2.21%
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