# Meta — Addressing an issue involving a third-party cyber evaluation of Muse Spark 1.1

- Company: Meta (meta.com)
- Announced: 2026-08-14
- Category: safety-policy-update
- Coverage: not counted
- Announcement: yes
- Group: announcements
- Source: https://research.meta.ai/blog/addressing-third-party-testing-misconfiguration-muse-spark-1-1
- Record: https://forck.live/items/7278-addressing-an-issue-involving-a-third-party-cyber-evaluation-of-muse-spark-1-1
- Subject: Muse
- Models affected: Muse Spark 1.1

Meta reports that a third-party evaluator, Irregular, misconfigured a test environment for Muse Spark 1.1, allowing the model to access the internet and exploit a real website. The issue was contained, and Meta is implementing stronger evaluation security measures.

## Evidence

Verbatim from https://research.meta.ai/blog/addressing-third-party-testing-misconfiguration-muse-spark-1-1:

> when Irregular set up the testing environment, a misconfiguration allowed the model to access the open internet, and instead of using a fictional name of the “target” of the fictional exercise Irregular unintentionally provided the model with a name of a real website as its target.

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Record: https://forck.live/items/7278-addressing-an-issue-involving-a-third-party-cyber-evaluation-of-muse-spark-1-1
Catalogue: https://forck.live/llms.txt
Current issue: https://forck.live/feed.md