What Is the Difference between a 51% Attack and a Sybil Attack?

A 51% attack is specific to Proof-of-Work networks and involves controlling over half of the network's computational power (hash rate) to manipulate the ledger. A Sybil attack is a broader term where a single malicious entity creates and controls numerous fake identities or nodes on a decentralized network.

The goal of a Sybil attack is to gain a disproportionate influence on the network's governance or decision-making process, rather than directly manipulating the transaction history.

How Does Proof of Work Inherently Resist Sybil Attacks?
What Is the ‘Sybil Attack’ and How Does Decentralization Counter It?
What Is “Sybil Resistance” in the Context of Oracle Networks?
What Is the Difference between a 51 Percent Attack and a Sybil Attack?
Can a Sybil Attack Be Used to Manipulate the Price of a Derivative?
What Is a Sybil Attack and How Does Quadratic Voting Mitigate It?
What Is a Sybil Attack and How Does Quadratic Voting Attempt to Mitigate It?
What Measures Can a DAO Implement to Prevent Sybil Attacks?

Glossar