How does Logitech test the authenticity of the mouse?

The inquiry method of Logitech serial number includes the following steps:

Step 1: First, you need to log in to Logitech mouse official website, as shown in the figure below.

Step 2: Scrape off the silver scraping layer at the bottom of the mouse, and write down the 16 security code under the silver scraping layer, as shown in the figure below.

Step 3: Enter the 16 security code in the webpage to verify the authenticity of the product, as shown in the following figure.