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Message Verification Flaw

Definition

A message verification flaw is a security vulnerability in a system’s ability to correctly authenticate the origin or integrity of digital messages. This flaw permits an attacker to forge or alter messages, potentially leading to unauthorized actions or incorrect state changes within a blockchain protocol or smart contract. In digital asset systems, it could allow for fraudulent transaction approvals or the manipulation of cross-chain communication. Such a vulnerability can severely compromise the security and trustworthiness of decentralized applications.