Lumin Exposure View Metrics

The following metrics are used to assess data within Lumin Exposure View:

Data Timing

Data within Lumin Exposure View refreshes on the following cadence:

  • Asset Data — Asset information is updated every time the asset is seen as part of a scan.

  • Tag Application — When a tag is first created, it can take several hours to assign the tag to the appropriate asset, depending on the number of assets and the tag's rules.

  • Tag Reevaluation — Every 12 hours, Lumin Exposure View automatically reevaluates tags to ensure they apply to newly discovered assets, and are removed from any inactive assets.

Cyber Exposure Score (CES)

Lumin Exposure View calculates a dynamic CES that represents exposure risk as an integer between 0 and 1000, based on the Asset Exposure Score (AES) values for assets. Higher CES values indicate higher risk.

Note: Lumin Exposure View does not include assets older than 90 days in your CES.

CES Category CES Range
High 650 to 1000
Medium 350 to 649
Low

0 to 349

Asset Exposure Score (AES)

Lumin Exposure View calculates a dynamic AES for each asset on your network to represent the asset's relative exposure as an integer between 0 and 1000. A higher AES indicates higher exposure.

Note: Lumin Exposure View does not calculate an AES for unlicensed assets.

AES Category AES Range
High 650 to 1000
Medium 350 to 649
Low

0 to 349

Asset Criticality Rating (ACR)

Tenable assigns an ACR to each asset on your network to represent the asset's relative criticality as an integer from 1 to 10. A higher ACR indicates higher criticality.

ACR Category ACR Range
Critical

9 to 10
High 7 to 8
Medium 4 to 6
Low

1 to 3

Because Tenable Vulnerability Management calculates ACR values every 24 hours, you may need to wait up to 24 hours to view the ACR after scanning the asset on your network.

Lumin Exposure View Categories

Lumin Exposure View products refer to data sources as Categories. For more information, see Data Sources.

Additionally, Lumin Exposure View uses specific icons to represent these within the user interface.

Category Icon

Cloud Resources

Web Applications

Identity Exposure

Computing Resources