Is HyperChat [Improved YouTube Chat] safe?

Clean risk

HyperChat is a YouTube chat enhancement tool that uses window.postMessage() for inter-frame communication without origin validation, presenting a minor security concern. However, the attack surface is limited to YouTube chat contexts and the extension's stated purpose justifies its narrow permissions.

Kento Nishiv3.1.1Chrome Web Store
0Risk

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Updated 18 May 2026naipgebhooiiccifflecbffmnjbabdbh