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TECHNOLOGY

Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day

Ars TechnicaMonday, September 21, 2026 at 10:24 PM

RedScroll Brief

Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day
Image via Ars Technica

A simple ClickFix attack is only one way to completely hijack the new agent.

RedScroll Signal

Impact
High
Category
Technology
Market relevance
Moderate
Why it matters
Technology shifts change how people work, communicate, and build — often faster than policy can follow. A simple ClickFix attack is only one way to completely hijack the new agent. Secondary effects may show up in markets and supply chains linked to Muse and Meta.

Desk copy

RedScroll Briefing

Extractive editorial brief — not a reprint of the original

What happened

A simple ClickFix attack is only one way to completely hijack the new agent.

Why it matters

Technology shifts change how people work, communicate, and build — often faster than policy can follow.

Background

Ars Technica reported on this under technology. RedScroll surfaces the signal with an extractive brief — not a reprint of the original article. Read the source for full reporting.

Timeline

  1. Ars Technica published: Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day

  2. Story is in today’s RedScroll edition. Follow the original source for updates.

Economic impact

Secondary effects may show up in markets and supply chains linked to Muse and Meta.

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Source

Ars Technica

Original reporting by Ars Technica. RedScroll provides an extractive briefing only.