glossary
Man-in-the-Middle Attack
Definition
A Man-in-the-Middle (MitM) Attack is a security breach where a threat actor intercepts and manipulates communication between two parties, typically without either party's knowledge.
Description
In Web3 security, MitM attacks often target the space between the user interface (UI) and signing logic, particularly during hardware wallet interactions. Here, attackers may attempt to intercept a transaction after the user has approved it but before it has been signed, modifying its details to their advantage.
This type of attack highlights the importance of secure signing interfaces and direct communication between wallets and dApps.