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The P + epsilon Attack

Vitalik Buterin · Ethereum Foundation Blog · 2015

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Type: Web page
Author: Vitalik Buterin
Accessed: 2026-09-01

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TheorySchelling-point voting games of the kind Kleros uses are vulnerable to the 'P + epsilon' attack, in which an attacker credibly promises to pay voters for a false answer only if it loses, making that answer each voter's best response at no cost to the attacker.