Muse privacy: what Meta’s policy says, and the concerns so far

Which privacy policy covers Muse?

Per MetaTwo apply. The Meta Privacy Policy covers all Meta products, including Muse. The separate Muse Privacy Policy adds Muse-specific details and “explains when data use is more limited than the Meta Privacy Policy describes.” If they conflict, the Muse policy wins.¹ Muse’s terms point to the same policy for “processing of personal information related to Muse.”⁵

What Meta collects through Muse

Per MetaOn top of what the Meta Privacy Policy already covers, the Muse policy lists four groups:¹

All of it lives in your Muse virtual machine, which Meta says is isolated “so no one else’s agent can access it.” Muse also keeps backups.¹² How that machine works is in how Muse works.

Is your Muse data used for ads?

Per MetaMeta says no, for your chats and VM data. “Muse doesn’t share your conversations or the data in your virtual machine with Meta ad systems. This applies even if your Accounts Center includes other Meta Products.”¹

The App Store label reads differently. Meta’s privacy label for the Muse iPhone app says data linked to you may be used for “Third-Party Advertising” and “Developer’s Advertising or Marketing,” listing categories such as purchase history, location, contacts, browsing history, search history and user content. Apple notes that it hasn’t verified the label.⁷ The label covers the app as a whole and doesn’t say which data is meant. Meta hasn’t explained the difference publicly, so we’re treating the privacy policy as Meta’s specific commitment and the label as a broader disclosure.

On Google Play, Meta’s data-safety section says the app may share personal info and device IDs with third parties and may collect location and personal info, among other data types; data is encrypted in transit and you can request deletion.⁸

AI training: on by default

Per MetaUsing your interactions to “train and improve our AI models” is on when you first use Muse. You can turn it off under Settings → Data controls, and Meta says the change “also appl[ies] to previous interactions.” The same switch covers information Muse pulled from your connected apps.¹

If you leave it on, Meta says it removes certain personal details (names, email addresses, phone numbers, Social Security numbers) and disassociates the data from your account.¹ Muse’s terms grant Meta a license to use your content “to improve AI at Meta,” with the same opt-out.⁵

Who at Meta can see your Muse data?

• Per MetaMeta can, when it decides it needs to. Meta’s security write-up says the current design “does not prevent Meta from accessing data when necessary to support, secure or operate the service.”⁶
• Per MetaMuse’s actions can be logged. The terms reserve Meta’s right “to monitor, log, review, suspend, block, or modify Muse’s actions at any time,” and to access and keep logs of those actions for “safety monitoring, abuse prevention, service improvement, and legal compliance.”⁵
• AnnouncedA fix is promised, not shipped. A “Muse Confidential VM,” designed to keep information private “even from Meta,” is planned for later in 2026 and wasn’t available on October 7.¹⁶

Keeping Muse separate from Facebook and Instagram

Per MetaYou choose whether Muse joins your other Meta accounts. If you add Muse to the same Accounts Center as Facebook or Instagram, Meta “may combine and use your information across profiles and devices,” except where the Muse policy says it won’t (such as ads). If you keep it separate, Meta says Muse won’t share your Muse interactions or VM data with other Meta products.¹

To keep it separate, Meta’s terms say to sign up for Muse with an email address that isn’t linked to another Meta account.⁵ Note that Facebook, Instagram and Threads connect to Muse automatically when they share an Accounts Center with it.¹³

What connected apps receive

Per MetaMeta says Muse exchanges with each connector “only the data that’s needed for them to work for you.” For example, connecting email lets Muse search your inbox without downloading all of it “unless you tell it to.” Some connectors, such as calendars, push updates to Muse on their own, and Meta says it flags those before you connect.¹

Two catches: each connector’s own privacy policy governs what it does with the data it receives, and after you disconnect, data Muse already used “may remain in Muse’s memories and your conversation history.”¹ All 54 connectors.

Information about other people

• Per MetaThe policy says your interactions can include “information about you or others.”¹ Meta’s help page for non-users says information about them “may be provided to Muse, even if you don’t use Muse directly.”⁴
• Per MetaThe terms make it your job to get “consents (where required) from third parties whose personal information may be processed.”⁵
• ReportedWIRED and TIME reported that Muse’s instructions build and update profiles of users and of the people in their lives.⁹¹⁰ Full details: Does Muse keep profiles of the people in your life?

Deleting data, and what Muse may still remember

Per MetaYou can delete messages, side chats and files, or reset Muse to delete all your Muse data.³ But “Muse may still ‘remember’ information it learned from what you deleted.” The Forget skill asks Muse to forget specific topics or people “to the best of its ability,” and you can view what it remembers in files like MEMORY.md.¹ ReportedTIME reported an instruction telling Muse not to mention that original messages may stay visible in the chat after a deletion request.¹⁰ Every path: how to delete your Muse data or account.

The main privacy concerns so far

Regulators and lawsuits

We found no lawsuit or regulator case over Muse privacy as of October 7, 2026. ReportedCanada’s privacy commissioner’s office advised users to limit the personal information they share, including other people’s details and images of children, Global News reported.¹² Per MetaMuse’s terms require users in the US and Canada to settle disputes through binding individual arbitration and waive class actions; the terms explain how to opt out of arbitration.⁵

Five privacy settings worth changing

1. Turn off AI trainingSettings → Data controls → switch off “Help improve our AI models.”¹
2. Decide on Accounts CenterUse a separate email if you don’t want Muse data combined with your other Meta accounts.⁵
3. Set approvals to “Always ask”In Settings → Permissions, for connectors and web access. How approvals work.
4. Connect lessPrefer read-only connectors and disconnect ones you no longer use. Read-only access.
5. Check its memoryOpen MEMORY.md and use the Forget skill for people or topics you don’t want kept.¹

Sources

1. Muse Privacy Policy Meta · effective Sept 17, 2026 · read Oct 7, 2026
2. How Muse handles your privacy, safety and security Meta Help Center · checked Oct 7, 2026
3. How to manage your Muse data Meta Help Center
4. Information for people who don’t use Muse Meta Help Center · checked Oct 6, 2026
5. Muse Supplemental Terms of Service Meta · updated Sept 8, 2026 · read Oct 7, 2026
6. How we built safety into Muse Meta AI Research · Sept 8, 2026
7. Muse from Meta: App Privacy Apple App Store (US) · checked Oct 7, 2026
8. Muse from Meta: Data safety Google Play (US) · checked Oct 6, 2026
9. Muse creates detailed profiles of all your friends and family WIRED · Oct 3, 2026
10. Meta’s Muse AI agent is building a dossier on you TIME · Oct 6, 2026
11. Dox for Me, O Muse Hunterbrook Media · Sept 28, 2026
12. Meta’s AI agent Muse is stirring growing privacy fears Global News · Sept 29, 2026
13. How Muse works with Connectors Meta Help Center

Last checked: 2026-10-07. Privacy policies change. We re-check this page weekly and note any edit to Meta’s policy or terms. Spotted a change? Tell us.