Exclude or Include Assets with Predicted Scores from your CES

The following feature is not supported in Tenable.io Federal Risk and Authorization Management Program (FedRAMP) environments. For more information, see the FedRAMP Product Offering.

Required Additional License: Tenable Lumin

Required Tenable.io Vulnerability Management User Role: Basic, Scan Operator, Standard, Scan Manager, or Administrator

By default, Lumin calculates your Cyber Exposure Score using predicted asset data. This means that when an asset does not have sufficient scan data, Lumin uses an algorithm to predict your CES. Sometimes, you may want to exclude predicted data from your overall CES calculations to isolate the contribution of risk in your score. Selecting Exclude assets with predicted scores excludes assets with predicted data from both your current and historical CES calculations.

Note: This setting only impacts the CES and AES visible to your user account, but not the scores visible to other user accounts across your Tenable.io instance.

Tip: Tenable recommends including assets with predicted scores for the most comprehensive view of your Cyber Exposure.

To exclude or include assets with predicted scores from your CES:

  1. Navigate to the new Tenable.io interface, as described in Access the New Interface.

  2. In the upper-left corner, click the Menu button.

    The left navigation plane appears.

  3. In the left navigation plane, click Lumin.

    The Lumin dashboard appears.

  4. In the upper-right corner, click Configure.

    The Configure plane appears. In the Cyber Exposure Score (CES) Calculations section, Lumin shows the number of known assets, predicted assets, and the total number of assets included in your CES.

  5. Select or deselect the Exclude assets with predicted scores check box:

    • Selected — Lumin excludes assets with predicted scores from your CES calculation.

    • Deselected — Lumin includes assets with predicted scores from your CES calculation.

    At the bottom of the panel, a message summarizes how your CES will change.

  6. Click Save.

    A confirmation message appears and Lumin automatically updates the Lumin dashboard data to include or exclude predicted assets from current and historical CES calculations.