Data Loss Prevention Endpoint is unable to get the serial number from a specific USB drive

Technical Articles ID: KB85257
Last Modified: 2023-05-30 03:52:11 Etc/GMT

Environment

Data Loss Prevention Endpoint (DLP Endpoint) - all supported versions

For supported environments, see KB68147 - Supported platforms for Data Loss Prevention Endpoint.

Problem

DLP Endpoint isn't able to get the serial number from a specific USB drive. As a result, it's impossible to control the USB memory stick by the Removable Storage Device Rule (RSDR).

Cause

The operating system recognizes some intelligent USB memory sticks as two USB devices because there are two classes of USB devices:

USB Composite device - Unknown class (with serial number set)
USB Storage device - USB Mass storage class (with no serial number set) Removable storage device rule

The RSDR can't get its serial number from the USB memory stick because it doesn't have its serial number set in the USB Mass storage class.

Solution

This behavior is as expected.

Workaround

To get the serial number, use the PnP device rule with a bus type definition.

Affected Products

Languages:

This article is available in the following languages:

Knowledge Center

Data Loss Prevention Endpoint is unable to get the serial number from a specific USB drive

Environment

Problem

Cause

Solution

Workaround

Affected Products

Languages:

Title

Title

Knowledge Center

Data Loss Prevention Endpoint is unable to get the serial number from a specific USB drive

Environment

Problem

Cause

Solution

Workaround

Affected Products

Languages:

Choose your region

Title

Title