#Educational Post
What Is a Sybil Attack?
A Sybil attack is a type of cyber attack where a malicious entity creates and controls multiple fake identities or nodes on a #peer-to-peer network to gain a disproportionate influence over the network. Typically, the attacker creates numerous pseudonymous identities that appear to be distinct entities, aiming to outnumber and overpower the legitimate nodes.
How Sybil Attacks Work
In a Sybil attack, the attacker creates a large number of fake accounts, #nodes , or identities on a network. These fake identities are then used to manipulate the network's operations, voting outcomes, or consensus mechanisms by overwhelming the legitimate nodes.
The attacker often exploits the open and pseudonymous nature of peer-to-peer networks, where identities are cheap to create and difficult to validate. By controlling a majority of nodes, the attacker can potentially censor transactions, reverse transactions (double-spending), or disrupt the network's operations.
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