AI agent safety

Is Meta Muse safe to use with your money?

What Meta's Muse agent can do with your accounts and cards, the safeguards Meta built in, what has gone wrong so far, and the settings to change first.

October 16, 20267 min read

Two kinds of access

How Meta's help center describes Muse actions

Read actions

View information, like checking your calendar or reading an email

Write actions

Make changes, like sending a message or making a purchase

Quick answer

Mostly, for low-stakes tasks with the right settings. Muse asks before purchases, can pay with one-time card numbers and keeps passwords away from the AI model. It is also weeks old, reporters have caught it reading data it was not granted, and Meta says you are responsible for every transaction it makes. Keep approvals on, use read-only access where you can, turn off AI training, and do not give it broad control of bank or card accounts yet.

What Muse can do with your money

Muse is Meta's personal AI agent, launched in the US on September 8, 2026, through its own app and WhatsApp. You connect it to services Meta calls Connectors, such as email, calendar and payments, and it can then act for you. TechCrunch reports it can lower bills, fill out forms and make purchases.

Money is one of its first uses. CNBC reports people giving Muse access to bank and card statements so it can find and cancel subscriptions they no longer need. Muse can also shop online, either with Link by Stripe or by logging into your accounts and paying with a saved card.

Muse itself has a price. It is free to start, but TechCrunch reports it requires a payment card, with paid plans at $20 a month (Power) and $100 a month (Maximum) as usage grows. The app shows a usage meter and warns you when free usage runs out.

For how Muse performs on real money chores and what each plan includes, read our Meta Muse review.

Disclosure: Compass+ is building a money-saving agent, so we have a stake in this category. We have not tested Muse ourselves. This guide relies on Meta's help pages and published reporting, checked October 16, 2026.

The safeguards Meta built in

Purchase approval: Meta says Muse always asks before completing a purchase and checks with you before other sensitive actions.
Permission levels: you can make Muse ask before every action, or before write actions and important read actions.
One-time card numbers: Link by Stripe issues a new card number for each purchase, so your real number stays private, and Stripe offers coverage for eligible purchases.
Hidden passwords: credentials go into a Secure Credentials Store, and Muse can use them without the AI model seeing the password.
Prompt-injection checks: Meta says important permission and security checks run separately from the AI model, so a malicious instruction in an email or website does not rely on Muse spotting it.
Ad separation: Meta says Muse conversations and workspace data are not shared with its ad systems.

What has gone wrong so far

On launch day, Reuters reported that Meta's internal tests showed the product stalling and exposing sensitive data without authorization. Three weeks later, Tom's Hardware covered Inc. reporter Jason Aten's finding that Muse's Mac app had been syncing his local Messages database, which he had not granted it access to.

Retailers are pushing back too. CNBC reports that Amazon blocked Muse from shopping on its site, saying the agent's access violated its terms of service.

Meta's own help center is candid: "no automated system is perfect," and you are responsible for guiding Muse, approving its actions and every transaction it makes. Treat that as the real terms of the deal.

Read access vs write access

Meta splits Muse's actions into two kinds. Read actions let it view information, like checking your calendar or reading an email. Write actions let it change things, like sending a message or making a purchase.

For money, that split is the whole question. An agent that can only read your transactions can point out a duplicate charge or a forgotten subscription. In the worst case, it sees something it shouldn't. An agent that can write can also spend, cancel or send, and Meta notes that some actions, like sending an email, cannot be undone. Many Connectors can be set to retrieve data only, so start there.

If you're weighing any app that links to your bank, our guide on whether Plaid is safe to link your bank account explains how read-only bank connections work.

How to use Muse more safely with money

Open Settings, then Permissions, and choose Always ask or Ask for some actions. Avoid Always allow for any Connector that can pay or cancel.
Set Connectors to read-only where the option exists, and connect only the accounts a task needs.
Pay with Link by Stripe instead of letting Muse log into a store with your saved card.
Turn off AI training in Settings under Data controls. The change also covers past interactions.
Skip Custom Connectors for financial accounts. Meta says it does not review them or how they use your information.
Watch the usage meter so you don't move to a $20 or $100 plan by accident.
Check receipts and card statements after every task. When you stop using a Connector, disconnect it and ask Muse to forget what it learned from it.

Who should wait

Weighing Muse against the startup agent Instinct? Our Muse vs Instinct comparison puts their access, price and money safeguards side by side.

If an unexpected charge would cause an overdraft, or you share accounts with someone who hasn't agreed to an AI agent seeing them, hold off on connecting money accounts for now. You can still find most leaks by hand: our guide to finding all your subscriptions and the Money Leak Finder work without linking anything.

Where Compass+ fits

Compass+ takes the read-only approach. Today the Compass assistant runs inside Gerald with a read-only bank connection for balances and transactions. It cannot move money, make purchases or cancel services.

Standalone Compass+ is waitlist-only. Broader connections are still being built, and we will describe them here only once they exist.

Frequently asked questions

Meta Muse safety FAQ

Is Meta Muse safe to use?

Muse has real safeguards, including approval before purchases, one-time card numbers through Link by Stripe and a credential store the AI model cannot read. It is also new, and reporters have documented it accessing data it was not granted. It is reasonable for low-stakes tasks if you keep approvals on and limit what you connect.

Can Muse spend my money without asking?

Meta says Muse always asks for approval before completing a purchase. Other actions depend on your permission settings, and Meta says you are responsible for every transaction Muse makes on your behalf, so review receipts and statements.

Does Muse need a credit card?

Yes. TechCrunch reports that Muse requires a payment card to get started. It is free to use, with paid plans at $20 a month (Power) and $100 a month (Maximum) when usage grows, and the app shows a usage meter.

Does Meta use Muse data for ads or AI training?

Meta says Muse conversations and the data in your Muse workspace are not shared with Meta's ad systems. Using your interactions to train Meta's AI models is on by default. You can turn it off in Settings under Data controls, and the change also applies to past interactions.

Can Muse cancel my subscriptions?

CNBC reports people using Muse to find and cancel recurring subscriptions after giving it access to bank and card statements. Muse acts through your own accounts, so confirm each cancellation with the merchant and check your next statement.

How do I delete what Muse knows about me?

You can ask Muse to forget a topic, delete messages and files, or reset Muse to delete all your Muse data. Disconnecting a Connector stops future data exchange, but Meta says information Muse already used may remain in its memories until you delete it.

Sources

Put this guide to work

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Estimate the subscriptions, duplicate charges, missing refunds, fees, renewals, and bill increases worth investigating, without uploading a statement.

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