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  1. Home
  2. /Glossary
  3. /Sybil Attack
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blockchain

Sybil Attack

Creating multiple fake identities to gain disproportionate influence in a system.

Definition

Creating multiple fake identities to gain disproportionate influence in a system. In crypto, sybil attacks target airdrops by using hundreds of wallets to farm the same protocol. Projects use on-chain analysis and tools like Gitcoin Passport to identify and filter out sybil wallets before distributing tokens.

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Related Terms

Airdrop Farming

Strategically using protocols before they launch a token to qualify for free airdrops.

Airdrop

A marketing strategy where crypto projects distribute free tokens to wallet addresses.

Decentralized

Not controlled by any single entity, authority, or server.

ABI

Application Binary Interface.

Account Abstraction

A way to make crypto wallets behave more like normal apps by turning every account into a smart contract.

ERC-4337

The Ethereum standard for account abstraction without changing the core protocol.

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