SushiSwap: The Vampire Attack That Changed DeFi

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SushiSwap emerged from one of crypto’s most dramatic episodes: the “vampire attack” that drained $1 billion from Uniswap. Its turbulent history offers lessons about DeFi governance, forks, and community building.

The Vampire Attack

In August 2020, anonymous developer “Chef Nomi” launched SushiSwap by:

  1. Forking Uniswap’s code (open source)
  2. Adding SUSHI token rewards for Uniswap LPs
  3. Migrating liquidity when rewards were highest
  4. $1B+ moved from Uniswap to SushiSwap

The Drama

  • Chef Nomi sold $14M of SUSHI (called a “rug pull”)
  • Community outrage, price crashed
  • Control transferred to Sam Bankman-Fried (FTX)
  • Chef Nomi returned funds, apologized

SushiSwap Today

  • Multi-chain DEX (15+ chains)
  • Products: Swap, Kashi lending, Onsen farms
  • Community-governed via SUSHI token
  • Pioneered xSUSHI staking model

Key Takeaways

  • Forks can be both predatory and innovative
  • Token incentives can bootstrap liquidity rapidly
  • Governance and trust matter in DeFi
  • The UNI airdrop was Uniswap’s response