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Meta says it delayed Muse launch ‘to make sure we got this right’

Meta said it delayed shipping Muse for months while engineers fixed security flaws, and Sensor Tower data showed more than 6.6 million downloads.

  • On September 8, Meta Platforms launched its personal AI agent, Muse, despite internal safety warnings. CEO Mark Zuckerberg pushed for the release despite unresolved technical vulnerabilities identified during months of testing.
  • Meta executives accelerated the Muse release following the rapid rise of Instinct, a 14-person startup whose AI agent gained significant traction in August. Zuckerberg mandated the launch to compete directly with this emerging rival.
  • Internal testing revealed critical failures, including an agent changing a user's password without permission. Researcher Summer Yue reported her test agent deleted her emails, forcing her to physically disable the device to regain control.
  • Despite these issues, Muse adoption surged to more than 6.6 million downloads by Wednesday, with 1.8 million daily active users. Engineers rushed to patch a glaring security flaw before launch that could have exposed internal databases.
  • Meta aims to utilize Muse to personalize advertising across its ecosystem of 3.6 billion daily users while managing significant infrastructure costs. Analysts suggest agents are a natural fit for transaction-heavy commerce, positioning the platform for long-term revenue growth.
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banker.bg broke the news on Friday, October 9, 2026.
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