Glasswall Meteor’s *Find and redact* tool is a data loss prevention feature which allows users to set customized rules to identify and remove sensitive information in Office documents.

**Note:** This feature is currently only available in ‘Preview’ mode.

1. From the Welcome screen or from the side navigation menu, select **Find and redact**.

![10_findandredact](/.attachments/10_findandredact.png)

2. Click **Add new rule**. You will arrive at the *Create your rule* screen.

![11_createyourrule](/.attachments/11_createyourrule.png)

3. Select the appropriate tab for the custom rule you would like to create.

For every rule, the following actions can be assigned:

* **Find** - identify files containing sensitive information.
* **Redact** – obscure or remove sensitive information.
* **Block** – stop a file from moving into your clean files.

4. Enter a name for your new rule in the **Name your rule** field.
5. Add your regular expression code in the corresponding field.

**Note:** Currently the regular expression matching is case insensitive.

6. If you selected the *Redact* tab, enter the appropriate character in the **Replace your character** field.

![12_redactreplacecharacter](/.attachments/12_redactreplacecharacter.png)

7. Click **Save rule**.

Once a rule is created, it will be applied to all files processed via [Clean files
now](/meteor/glasswall-meteor-clean-files-now) or [Sync and clean](/meteor/glasswall-meteor-sync-and-clean).