Is Grammarly Safe for Client Data in 2026?

Is Grammarly Safe for Client Emails?

Grammarly can process a client email while you write it in a supported app or website. You don’t have to paste the email into its editor or ask it to rewrite anything.

That makes an enabled writing assistant another recipient of the information in your draft. A client name beside an income figure or hardship explanation can identify the borrower. Turning off training still allows the processing needed to provide writing suggestions.

Grammarly’s privacy and security guidance says it encrypts data and hosts it in the United States. It also says sensitive-field blocking works on a best-efforts basis. Treat an ordinary email or notes field as exposed while Grammarly is active.

For example, in a hypothetical client email, a broker types a borrower’s name and explains a missed repayment. If Grammarly is active in that field, the text can be processed even if the broker rejects every suggestion.

What Grammarly Keeps and Uses for Training

Grammarly stores documents saved in its editor until you delete them or delete the account. Its Trust Center also says tailored assistance can store account-linked data for personalised suggestions. Turning off a tailored-assistance feature deletes the data stored for that feature.

Text processed in another app doesn’t become a saved editor document automatically. Grammarly describes that processing as necessary to deliver and administer its service. Its generative features also send prompts and relevant context to service providers, which Grammarly says cannot train their models on that content.

Grammarly’s own model training has separate rules. Its Product Improvement and Training control distinguishes the account and purchase channel:

• Free, Premium and single-user Pro accounts have training on by default.
• Multi-user Pro accounts bought through the website initially have training on. An administrator can turn it off for the organisation.
• Enterprise-tier accounts and Pro or Business accounts bought through Sales have training off by default. Education accounts also have it off.

For Free or Premium, open your account’s Privacy settings and turn off Product Improvement and Training. For single-user Pro, use Data settings. On a multi-user website-purchased account, the administrator changes the organisation’s setting in Data settings.

Confirm the control shows off before using the account for approved work. Grammarly can still use aggregated or de-identified statistics under its stated policy. A training opt-out doesn’t delete saved documents or stop text processing.

Turn Grammarly Off for Client Work

Block Grammarly in each client-facing app and website, including your email client and customer relationship management (CRM) system. Check both the desktop app and browser extension if you have both installed.

Block the Desktop App

Use Grammarly’s app-specific controls:

1. Open an empty text field in the app or website you want to block. Leave client information out while you change the setting.
2. On Windows, right-click the floating Grammarly widget or tab. On a Mac, click the Grammarly icon in the menu bar.
3. Choose Turn off Grammarly. Avoid the one-hour option when you want the block to remain.
4. Open Block list in Grammarly Settings. Confirm the app or website appears there.

Enterprise administrators can enforce application controls across the organisation or selected groups. That desktop restriction requires separate entries for the Windows application and Mac application.

Block the Browser Extension

Follow the website controls for each client system:

1. Open the website without entering client information.
2. Click the Grammarly icon in the browser toolbar.
3. Turn off Allow extension to check text on that website.
4. Reload the page and confirm the site control stays off. Type a harmless sample sentence and confirm Grammarly doesn’t appear.

Repeat the check in each browser profile you use for work. If suggestions still appear, check the other installation: blocking the extension leaves the desktop app’s controls separate.

What a Broker Must Never Enter

Keep identifiable client records out of an unapproved Grammarly editor, prompt or enabled text field. Adopt a rule that covers pasted documents as well as text you type:

• Keep passports, driver licences and other identity documents out.
• Exclude bank statements, account numbers and card details.
• Don’t enter tax file numbers, tax returns or payslips.
• Keep completed fact finds, credit reports and loan applications out.
• Exclude client names and contact details when discussing income, debts or property security.
• Don’t paste medical information, hardship explanations or family circumstances that identify a client.
• Keep passwords and one-time verification codes out of prompts.

Removing a name alone can leave a client recognisable through their address or unusual circumstances. For general writing practice, use a fictional example with invented details. Keep the real client material in the systems your brokerage approves for it.

Delete Grammarly From a Mac or PC

Remove the desktop app and each browser extension separately. Uninstalling them stops those installations from operating, but leaves your online account and saved documents to manage separately.

Remove the Desktop App

Grammarly’s desktop uninstall instructions cover both systems:

1. On a Mac, click Grammarly in the menu bar and choose Quit.
2. Open Applications in Finder. Move Grammarly for Mac to Trash.
3. On Windows, quit Grammarly from the system tray.
4. Open Apps and Features or Installed apps in Windows Settings. Select Grammarly for Windows and choose Uninstall.

Follow the steps for your computer, then confirm Grammarly is absent from its application list. Restart your email app and check a harmless sample sentence.

Remove Browser Extensions

Use the extension removal instructions for every installed browser:

• In Chrome, right-click Grammarly’s toolbar icon and choose Remove from Chrome.
• In Edge, open Extensions, select Grammarly and uninstall it.
• In Firefox, remove Grammarly from Extensions under Add-ons and themes.
• In Safari, disable Grammarly under Extensions. Quit Grammarly for Safari, then move its separate application from Finder’s Applications folder to Trash.

Reopen each browser’s extension list and confirm Grammarly is gone. If it returns on a managed work computer, ask your administrator to remove the managed installation.

Delete Saved Documents and the Account

Preserve any brokerage records you must retain in your approved system before deleting them from Grammarly. Permanent deletion can’t be undone.

1. Sign in to the Grammarly Editor and review your saved documents.
2. Hover over a document and click its trash icon. Grammarly’s document deletion guidance says items stay in Trash for 30 days.
3. To delete an item sooner, open Trash and use its trash icon again. Confirm the permanent deletion, then check that the item is absent.
4. To close a free Grammarly account, open Profile and select Delete Account. Complete the ownership verification.

Grammarly’s account deletion instructions route active paid accounts through support. For an organisational subscription, have the administrator remove your membership first. Superhuman suite users must request account deletion through care@superhuman.com.

After removal, check your work apps and browser profiles again with fictional text. If you previously entered client information, keep an internal record of the affected account and the material involved for your brokerage’s review.