Fingerprints Database

The DeviceLock Enterprise Server stores digital fingerprints of information samples provided to it (such as documents and files) in the fingerprints database, and allows for the management of fingerprints held in that database. Fingerprints are grouped by classification of their source. For example, fingerprints created by a task of the “Secret” classification are included in the “Secret” classification.

The fingerprint classifications that exist in the database are listed in the details pane when DeviceLock Enterprise Server > Digital Fingerprints > Fingerprints Database is selected in the console tree. The list provides the following details on each classification:

•Quantity - The number of fingerprints in the database that are attributed to this classification.

•Size - The total size of fingerprints in the database that are attributed to this classification.

•Last updated time - The date and time that fingerprints were last added or updated in this classification.

•Last updated by - The name of the task that last added or updated fingerprints in this classification. If the last change in this classification was the adding of fingerprints by hand, the account name of the user who added the fingerprints is displayed instead of a task name.

•Frequency matching - The counter showing how many times fingerprints from this classification triggered when inspecting content by fingerprint-based rules.

This counter is incremented by one when a rule detects that the inspected content matches at least one fingerprint from this classification. When processing such a rule, the counter is only incremented by one even if the inspected content matches several fingerprints in this classification.

•Classification effectiveness - The percentage showing how many times fingerprints from this classification triggered, as compared to the total number of times the fingerprints from all classifications triggered.

As a single fingerprint may possess elements attributed to different classifications, the sum of effectiveness values by all classifications may exceed 100%.

The shortcut menu on each classification provides the following commands:

•Add fingerprint - Select the information sample, such as a document or file, of which the fingerprint needs to be taken. The fingerprint of the selected sample will be added to the classification for which this command is performed (see Adding Fingerprints Manually).

These commands are also available on each classification under Fingerprints Database in the console tree (see Viewing Fingerprint List).