> For the complete documentation index, see [llms.txt](https://support.gitcoin.co/gitcoin-knowledge-base/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.gitcoin.co/gitcoin-knowledge-base/about-gitcoin/policy/understanding-potential-attack-vectors/sybil-attack.md).

# Sybil Attack

We define a Sybil attack per

> In a Sybil attack, the attacker subverts the reputation system of a network service by creating a large number of pseudonymous identities and uses them to gain a disproportionately large influence. It is named after the subject of the book Sybil, a case study of a woman diagnosed with a dissociative identity disorder.

{% embed url="<https://en.wikipedia.org/wiki/Sybil:attack>" %}

{% embed url="<https://www.youtube.com/embed/v1Dm7FI2AdU>" %}