Is It Safe to Connect Your Brokerage Account to an Investing App? (2026)

How does an investing app connect to your brokerage account?

Most apps don't connect to each broker themselves. They use a data aggregator, a company that pulls account data from many financial institutions and passes it to the apps you approve. FINRA describes two ways an aggregator gets that data.

Screen scraping. You give the aggregator your username and password, and an automated program signs in to your broker as you and copies what it finds. The CFPB calls this a still common but risky practice in which third parties use your password to access data indiscriminately through online portals.

API or token-based access. The broker and the aggregator have an agreement, and you approve the connection without handing over your login. Schwab says its API gives third parties a "virtual" token instead of your credentials and lets you choose which accounts to share. Fidelity says that with its Fidelity Access connection you never give a third party your Fidelity username and password.

This kind of approval is what OAuth, an open standard published by the Internet Engineering Task Force, describes. You sign in on your broker's own page, approve what to share, and the app receives an access token with a set scope and lifetime instead of your password. The standard itself lists what goes wrong with password sharing: you can't revoke one app without changing your password for all of them, and if any app is breached, your password goes with it.

What does read-only access stop, and what doesn't it?

Read-only access lets an app see holdings, balances and transactions. It can't place trades or move money through that connection. FINRA notes that API connections can limit scope and specify whether fund transfers are permitted, so check what you granted, not just what the app's homepage says.

Trading is a separate, stronger permission. Robinhood says it doesn't allow trading APIs to be linked to a Robinhood account without its written authorization, and doesn't allow third-party apps to take action in the Robinhood app. Apps that do offer trading say how each order is approved: Walnut previews every order and places it only after a clear yes, and Astor's Text to Trade runs in a separate Robinhood agentic account where you approve each trade.

What read-only doesn't stop is exposure of the data itself. Your positions and transactions now live with the app as well as your broker. FINRA says many aggregators might operate under limited regulatory oversight, particularly on data privacy and security, and that the risks are especially high with screen scrapers that hold your login. So the questions that matter are what the app keeps, for how long, whether it sells or shares it, and what happens after a breach.

Does SIPC protect you if a connected app goes wrong?

SIPC protects the custody function of a SIPC-member brokerage firm. If the firm fails financially and cash or securities are missing from your account, SIPC works to restore them, up to a limit of $500,000, which includes a $250,000 limit for cash.

SIPC says it doesn't protect against a decline in the value of your securities, against being sold worthless securities, or against bad investment advice. Its description is about a failed brokerage firm and says nothing about losses caused by an app you connected, so don't treat SIPC as protection against a leaked login or a misused connection.

Your broker's own fraud guarantee may not help either. Schwab's Security Guarantee says it doesn't apply if a loss follows from you sharing your login or authorizing a third-party app other than one Schwab has partnered with, and that what an aggregator does with your account is treated as authorized by you. Read your broker's guarantee before you give any app your password.

What does the CFPB's Section 1033 rule do, and is it in force?

Section 1033 of the Consumer Financial Protection Act gives consumers a right to their financial data. On October 22, 2024, the CFPB finalized a rule requiring data providers to make covered data available to consumers and to authorized third parties in electronic form, and setting conditions those third parties must meet.

For apps, the main protections were limits and revocation. Third parties may collect, use and keep data only to deliver the product you asked for. When you revoke access, it must end immediately, deletion is the default, and access can't last more than a year without your reauthorization. The CFPB also said the rule would help move the industry away from screen scraping.

It isn't being applied as written. On August 22, 2025, the CFPB issued an advance notice of proposed rulemaking to reconsider parts of the rule and said it planned to propose extending the compliance dates. On October 29, 2025, a federal court stayed the rule's compliance dates in Forcht Bank, N.A. v. CFPB. When we checked consumerfinance.gov on October 29, 2026, it listed no newer proposed or final rule.

Brokerage accounts aren't named in it anyway. The rule's coverage section lists Regulation E accounts, Regulation Z credit cards and payment services that draw on them. For a brokerage connection, your protections come from your broker's terms and the app's own policies, so read both.

What do the SEC and FINRA tell investors about sharing logins?

• • Safeguard your usernames and passwords for online financial accounts, and never share a password by email, text message or phone (SEC Investor Bulletin, updated April 2026).
• • Turn on two-step verification and account alerts, including alerts for adding or deleting an external account that can move money or securities in or out (SEC).
• • In app privacy settings, choose the least amount of data sharing possible, and don't let apps save your account username and password (SEC).
• • Find out whether an aggregator connects by screen scraping, API or both, read the user agreement, and confirm it reaches only the data it needs (FINRA).
• • Check encryption, how long data is kept, how it's purged when you leave, and what happens if there's a breach, including who pays for a loss (FINRA).
• • Brokers say the same. Fidelity says that once you share your login, a third party has the same access to your data that you do, and Robinhood says its official third-party services won't ask for your Robinhood login or password.

How do you revoke an app's access to your brokerage account?

• • In the app, disconnect the account and close your account there. FINRA warns that ending access might take more than deleting the app from your phone.
• • At Schwab, go to Security Settings and open Third Party Access. Pick the app, switch off the accounts it can see, or tap Stop Linking to stop sharing data.
• • At Fidelity, use the data sharing dashboard to remove a third party's authorization to access your account information.
• • If you ever typed your password into an app, change it. Fidelity says a new password stops apps that screen-scrape with your old one, but doesn't affect connections made through Fidelity Access, so remove those separately.
• • Review connections now and then. Fidelity suggests periodically checking which sites and apps you've given your credentials to.
• • If you think your login was compromised, the SEC says to contact your firm immediately, change your passwords and watch for changes you don't recognize.

What should you ask an app before you connect it?

• • Do I approve access on my broker's own page, or do you want my password?
• • Is the connection read-only? If you can trade, how is each order approved?
• • Which accounts will you see, and can I choose?
• • What do you store, for how long, and do you sell or share it?
• • Is my data encrypted when you retrieve it and when you store it?
• • If there's a breach, will you tell me, and who covers a loss?
• • How do I disconnect, and is my data deleted when I do?
• • If you give investment advice, are you a registered adviser, and where can I check?

How do some investing apps handle your brokerage data?

When is linking an account the better choice?

• • You hold many positions across several accounts and want them kept in sync without typing: a read-only linked app such as Astor, Perplexity, Walnut or Origin does that.
• • You want an app to place orders from a conversation: Walnut does at supported brokers, Astor does in a Robinhood agentic account on its Max plan, and Moneda does in its own app.
• • You want budgeting and spending alongside investments: Origin covers that, and Perplexity links bank accounts, cards and loans as well as brokerages.
• • Whichever you pick, prefer one that connects by token through your broker, and check it on the list of questions above.

Where does Ecomerate fit?

Ecomerate is an AI research analyst you text in iMessage, and it doesn't need your brokerage login. You text it what you own and, in a line, why. Its answers then refer to your position, it reads new 10-K, 10-Q and 8-K filings and earnings for those companies, and it texts you when something touches your reasons for owning them, naming the source.

The limits: because nothing is linked, you keep your positions up to date yourself by texting changes. Brokerage connections are coming soon and are not live. It places no orders: not yet; automated trading is coming soon. It covers US-listed stocks and ETFs, works on iPhone, iPad and Mac only, and is research software, not a registered adviser, so it doesn't tell you what to buy or sell.