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To revoke an AI assistant’s access to a bank, card, or brokerage account, remove its authorization in the financial institution’s connected-app, security, privacy, or data-sharing settings. Check for an intermediary such as Plaid as well as the assistant itself. If you gave the assistant or another service your bank password, change that password immediately: disconnecting the service alone does not protect a credential it already received. Revoking access generally stops future authorized access, but does not necessarily delete financial data the service has already received.
What kind of access are you revoking?
An AI assistant that connects to a financial account is acting as a third-party data-sharing service, even if the connection was set up inside the assistant’s app. The connection may involve another company that handles account linking. Look for both the assistant and any intermediary when reviewing access; removing one connection may not remove a separate authorization.
The connection method matters for what to do next. In an OAuth flow, you are redirected to your financial institution to authorize access. The institution returns a security token to the third party, rather than giving that third party your bank password. Plaid describes OAuth as an industry-standard authorization framework for granting data access without sharing credentials directly. A credential-sharing connection is different: you enter your financial login into the assistant or an intermediary, which may then have access comparable to yours.
| Connection type | What it means | What to do |
|---|---|---|
| OAuth or another token-based connection | The financial institution authorizes access and returns a security token; the third party does not receive your bank password. | Revoke the assistant’s or intermediary’s authorization through the financial institution’s connected-app or data-sharing controls. |
| Credential sharing | You gave a third party your bank username and password. Bank of America warns that this can give the third party the same access as the customer. | Remove the connection and change your bank password immediately. Then review sessions, authentication settings, and account activity. |
Do not assume that every connection described as “secure” uses OAuth, or that every AI integration can only read account information. Check what method was used, which accounts and data elements were authorized, and whether the connection can initiate payments or other transactions. The permission details shown by the bank or service—not the fact that it is an AI assistant—are what matter.
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Find every active connection
Start with each financial institution where you may have linked an account: banks, credit-card issuers, and brokerages. Search their websites or apps for sections labelled connected apps, third-party access, data sharing, authorized services, privacy, or security. Labels and locations vary by institution, so there is no universal menu path.
Bank of America says customers who use its secure data-sharing protocol can view a list of third-party services accessing their data and revoke permission. Other institutions may organize the same function differently, or may require you to contact support. Check the account-connection service too, if you used one; for example, an intermediary may show linked institutions or connections in its own account settings.
- Sign in to the financial institution’s official website or app directly, rather than following a link in an unexpected message.
- Open the institution’s security, privacy, connected-app, or data-sharing area and review the active third-party list.
- Record the names of the assistant and any intermediary, along with the accounts or permissions shown. If a name is unfamiliar, check the connection history or contact the institution before assuming it is the assistant.
- Repeat the check for each bank, card issuer, and brokerage account you connected. A connection at one institution does not establish what is authorized at another.
If no list is visible, look for the institution’s help pages or contact its support, fraud, or security team. Ask specifically for a way to revoke third-party authorization to access your account data. In the United States, CFPB Regulation 1033.331(e) describes a reasonable method for consumers to revoke a third party’s authorization to access covered data; it also says a data provider must revoke access and notify the third party in a timely manner after receiving a revocation request. The rule concerns covered data and does not mean every institution worldwide uses the same interface or process.
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Revoke the authorization at the financial institution
For a token-based connection, use the bank’s or other provider’s controls where possible. Revocation there withdraws the authorization issued by that institution; deleting the AI app, signing out of it, or uninstalling it is not a substitute for checking the institution’s authorization list.
- In the connected-app or data-sharing list, select the assistant or account-linking service associated with it.
- Review the displayed institution, accounts, and data permissions to make sure you have selected the intended connection.
- Choose the available control to revoke, disconnect, or remove access, then complete any confirmation step.
- If the interface offers separate authorizations for multiple accounts or institutions, review and revoke each connection you no longer want active.
If the institution does not offer a visible control, contact support and request revocation of the third-party authorization. Give the institution enough information to identify the connection, but do not send your password in an email or chat. Keep any confirmation or case reference so you can follow up if the connection continues to appear.
If you shared your bank password, contain the exposure
Changing the password is urgent if you entered your financial login into the assistant or a non-OAuth intermediary. Bank of America advises that a third party with shared login information can have the same access as the customer and identifies changing the password as the safest and most secure response. Remove the connection as well; changing a password does not replace reviewing or revoking the authorization.
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- Change the financial account password using the institution’s official website or app. If you reused that password elsewhere, change it on those services too.
- Use the institution’s sign-out or session-management control to end other sessions, if it provides one.
- Enable multi-factor authentication (MFA) if available, and turn on login and transaction alerts. FFIEC guidance identifies MFA among controls that can mitigate unauthorized access.
- Review recent transactions and login history, and contact the institution promptly about activity you do not recognize.
A FIDO2/WebAuthn security key can be an optional additional MFA method after you contain the exposure, but only if your financial institution supports it. Confirm compatibility with the institution before buying or setting one up. A security key strengthens authentication; it does not revoke an existing third-party connection or replace changing a shared password.
Confirm access ended and monitor the account
After submitting a revocation, return to the financial institution’s access list and check that the assistant and relevant intermediary no longer appear as authorized. If the connection remains listed, or the assistant still appears to receive new account data, contact the institution and ask whether revocation is complete. The CFPB rule’s requirement is for timely action after a request, not an assurance that every user interface will update instantly.
Review recent transaction and login records for activity you did not authorize. Report suspicious transactions or logins to the institution through its official fraud or security channel. FFIEC guidance emphasizes monitoring, and interagency guidance on third-party relationships emphasizes controlling and monitoring those relationships. Keep monitoring in place after the connection is gone, particularly if you shared credentials.
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What revocation does—and does not—do to data already shared
Revoking a connection stops ongoing authorized access; it does not necessarily erase information the assistant or intermediary already received. Bank of America warns that a third party may retain and use previously shared data. Review the assistant’s and intermediary’s privacy and retention terms, then use their deletion request or account-data controls if offered. Removing the connection at the bank and requesting deletion from the service are separate actions.
Before requesting deletion, identify which service received the data and whether the intermediary also has a copy. A request to the AI assistant may not automatically address data held by an account-linking provider, and a bank-side revocation is not itself a deletion request to either party. If the service explains that some records are retained, read its stated retention terms rather than assuming that disconnecting removes them.
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Evaluate a connection before granting access again
If you decide to reconnect later, compare the actual permissions and controls rather than relying on a general claim that a connection is secure. A secure data-sharing protocol can reduce the data shared, avoid having a third party store login credentials, show which data elements are shared, and allow consent to be revoked, according to Bank of America’s guidance. Those benefits do not answer every question about the assistant’s own retention or use of data.
- Connection method: Check whether authorization uses OAuth or another token-based method, or asks you to share credentials directly.
- Permissions: See whether access is read-only or can support payments or other transactions, and which accounts and data elements are in scope.
- Revocation: Confirm that the institution exposes a clear way to see and revoke the authorization.
- Data handling: Review the assistant’s and intermediary’s retention and deletion policies separately.
- Account protection: Check what MFA options, session controls, and login or transaction alerts the institution supports.
These checks help distinguish a limited, revocable data connection from one that depends on shared credentials or grants broader permissions than the task requires.
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