Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day
Published . Updated .
A simple ClickFix attack is only one way to completely hijack the new agent.
Directly affected
- META META PLATFORMS INC
The reported development directly names META PLATFORMS INC in the headline; GA resolved that company to META.
Indirectly affected
- SUPX SUPERX AI TECHNOLOGY LTD
GA selected SUPX as a RELATED security because its canonical security name directly matches this event's themes: technology, ai. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.
- ABAT AMERICAN BATTERY TECHNOLOGY
GA selected ABAT as a RELATED security because its canonical security name directly matches this event's themes: technology. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.
- ACM AECOM TECHNOLOGY CORP
GA selected ACM as a RELATED security because its canonical security name directly matches this event's themes: technology. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.
- AOSL ALPHA & OMEGA SEMICONDUCTOR LT SHS
GA selected AOSL as a RELATED security because its canonical security name directly matches this event's themes: semiconductor. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.
- BBAI BIGBEAR AI HLDGS INC
GA selected BBAI as a RELATED security because its canonical security name directly matches this event's themes: ai. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.
- CHAT Roundhill Generative AI & Tech
GA selected CHAT as a RELATED security because its canonical security name directly matches this event's themes: ai. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.
Price reaction, T-5 to T+3
A simple ClickFix attack is only one way to completely hijack the new agent.
Source: Ars Technica
Meta Platforms (META) since this story, compared with the market
Since the first closing price after “Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day,” Meta Platforms (META) is -4.30%. The S&P 500 fund (SPY) is -0.88% over the same days, a -3.41% difference versus the market.
Disclosure records for Meta Platforms (META) within two months of 21 Sep 2026
- Maria Elvira Salazar sell Meta Platforms (META) ($1,001 - $15,000). That is 3 days after publication, inside 30 days. The filing is listed beside the story “Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day.”
- Rohit Khanna buy Meta Platforms (META) ($1,001 - $15,000). That is 2 days after publication, inside 30 days. The filing is listed beside the story “Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day.”
- Maria Elvira Salazar buy Meta Platforms (META) ($1,001 - $15,000). That is 1 days after publication, inside 30 days. The filing is listed beside the story “Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day.”
- Rohit Khanna buy Meta Platforms (META) ($1,001 - $15,000). That is 10 days before publication, inside 30 days. The filing is listed beside the story “Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day.”
- Donald J Trump buy Aecom (ACM) ($1,001 - $15,000). That is 24 days before publication, inside 30 days. The filing is listed beside the story “Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day.”
- Donald J Trump buy Meta Platforms (META) ($50,001 - $100,000). That is 24 days before publication, inside 30 days. The filing is listed beside the story “Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day.”
- Donald J Trump sell Aecom (ACM) ($1,001 - $15,000). That is 28 days before publication, inside 30 days. The filing is listed beside the story “Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day.”
- Gilbert Cisneros sell Meta Platforms (META) ($1,001 - $15,000). That is 32 days before publication, inside 60 days. The filing is listed beside the story “Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day.”
Public disclosure filings, not a recommendation. The filing link is the source document. News use of these reports still sits under 5 U.S.C. § 13107(c).
Who gains and who loses around Meta Platforms (META)
Companies tied to this story
- META Meta Platforms
For “Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day,” Meta Platforms (META) is linked, with no stored direction, high confidence. Reason on file: The reported development directly names META PLATFORMS INC in the headline; GA resolved that company to META
- SUPX SuperX AI Technology
In “Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day,” SuperX AI Technology (SUPX) is linked, with no stored direction, medium confidence. Reason on file: GA selected SUPX as a RELATED security because its canonical security name directly matches this event's themes: technology, ai. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
- ABAT American Battery Technology
In “Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day,” American Battery Technology (ABAT) is linked, with no stored direction, medium confidence. Reason on file: GA selected ABAT as a RELATED security because its canonical security name directly matches this event's themes: technology. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
- ACM Aecom
Aecom (ACM) is linked, with no stored direction, medium confidence in the 21 Sep 2026 story “Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day.” Reason on file: GA selected ACM as a RELATED security because its canonical security name directly matches this event's themes: technology. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
- AOSL Alpha & Omega Semiconductor
Alpha & Omega Semiconductor (AOSL) is linked, with no stored direction, medium confidence in the 21 Sep 2026 story “Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day.” Reason on file: GA selected AOSL as a RELATED security because its canonical security name directly matches this event's themes: semiconductor. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
- BBAI BigBear.ai Holdings
In “Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day,” BigBear.ai Holdings (BBAI) is linked, with no stored direction, medium confidence. Reason on file: GA selected BBAI as a RELATED security because its canonical security name directly matches this event's themes: ai. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
- CHAT Roundhill Generative AI & Tech
For “Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day,” Roundhill Generative AI & Tech (CHAT) is linked, with no stored direction, medium confidence. Reason on file: GA selected CHAT as a RELATED security because its canonical security name directly matches this event's themes: ai. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
Meta Platforms (META)
“Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day” (21 Sep 2026) reaches Meta Platforms (META) through this story.
For Meta Platforms (META), the reason on file says The reported development directly names META PLATFORMS INC in the headline; GA resolved that company to META
A second company, SuperX AI Technology (SUPX), is listed for a different reason: GA selected SUPX as a RELATED security because its canonical security name directly matches this event's themes: technology, ai. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
Dates in the story, and the Meta Platforms (META) price range
ABAT traded between 1.42 and 2.42 across 20 sessions. The latest close on file is 1.44. META traded between 693.86 and 779.80 across 20 sessions. The latest close on file is 704.95. SUPX traded between 6.15 and 7.09 across 10 sessions. The latest close on file is 6.72.
How strong the case is around Meta Platforms (META)
46 out of 100
“Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day” scores 46 out of 100. The score uses 1 sources, and 7 linked companies.