Create a Data Filtering Profile

1. Define a new data pattern object to detect the information you want to filter.

   1. Select ObjectsCustom ObjectsData Patterns and Add a new object.
   2. Provide a descriptive Name for the new object.
   3. (Optional) Select Shared if you want the data pattern to be available to:

      • Every virtual system (vsys) on a multi-vsys firewall—If cleared (disabled), the data pattern is available only to the Virtual System selected in the Objects tab.
      • Every device group on Panorama—If cleared (disabled), the data pattern is available only to the Device Group selected in the Objects tab.
   4. (Optional—Panorama only) Select Disable override to prevent administrators from overriding the settings of this data pattern object in device groups that inherit the object. This selection is cleared by default, which means administrators can override the settings for any device group that inherits the object.
   5. (Optional—Panorama only) Select Data Capture to automatically collect the data that is blocked by the filter.

      Specify a password for Manage Data Protection on the Settings page to view your captured data (DeviceSetupContent-IDManage Data Protection).
   6. Set the Pattern Type to one of the following:

      • Predefined Pattern—Filter for credit card, social security numbers, and personally identifiable information for several compliance standards including HIPAA, GDPR, Gramm-Leach-Bliley Act.
      • Regular Expression—Filter for custom data patterns.
      • File Properties—Filter based on file properties and the associated values.
   7. Add a new rule to the data pattern object.
   8. Specify the data pattern according to the Pattern Type you selected for this object:

      • Predefined—Select the Name and choose the predefined data pattern on which to filter.
      • Regular Expression—Specify a descriptive Name, select the File Type (or types) you want to scan, and then enter the specific Data Pattern you want the firewall to detect.
      • File Properties—Specify a descriptive Name, select the File Type and File Property you want to scan, and enter the specific Property Value that you want the firewall to detect.
        • To filter Titus classified documents: Select one of the non-AIP protected file types, and set the File Property to TITUS GUID. Enter the Titus label GUID as the Property Value.
        • For Azure Information Protection labeled documents: Select any File Type except Rich Text Format. For the file type you choose, set the File Property to Microsoft MIP Label, and enter the Azure Information Protect label GUID as the Property Value.

   9. Click OK to save the data pattern.
2. Add the data pattern object to a data filtering profile.

   1. Select ObjectsSecurity ProfilesData Filtering and Add or modify a data filtering profile.
   2. Provide a descriptive Name for the new profile.
   3. Add a new profile rule and select the Data Pattern you created in Step .
   4. Specify Applications, File Types, and what Direction of traffic (upload or download) you want to filter based on the data pattern.

      The file type you select must be the same file type you defined for the data pattern earlier, or it must be a file type that includes the data pattern file type. For example, you could define both the data pattern object and the data filtering profile to scan all Microsoft Office documents. Or, you could define the data pattern object to match to only Microsoft PowerPoint Presentations while the data filtering profile scans all Microsoft Office documents.

      If a data pattern object is attached to a data filtering profile and the configured file types do not align between the two, the profile will not correctly filter documents matched to the data pattern object.
   5. Set the Alert Threshold to specify the number of times the data pattern must be detected in a file to trigger an alert.
   6. Set the Block Threshold to block files that contain at least this many instances of the data pattern.
   7. Set the Log Severity recorded for files that match this rule.
   8. Click OK to save the data filtering profile.
3. Apply the data filtering settings to traffic.

   1. Select PoliciesSecurity and Add or modify a security policy rule.
   2. Select Actions and set the Profile Type to Profiles.
   3. Attach the Data Filtering profile you created in Step 2 to the security policy rule.
   4. Click OK.
4. (Recommended) Prevent web browsers from resuming sessions that the firewall has terminated.

   This option ensures that when the firewall detects and then drops a sensitive file, a web browser cannot resume the session in an attempt to retrieve the file.

   1. Select DeviceSetupContent-ID and edit Content-ID Settings.
   2. Clear the Allow HTTP partial response.
   3. Click OK.
5. Monitor files that the firewall is filtering.

   Select MonitorData Filtering to view the files that the firewall has detected and blocked based on your data filtering settings.