AMPDevicesAgent: legitimate password request or attack?

This morning, out of the blue a popup window sprung on my screen:

Without a thorough investigation, I am not able to detect if this is a legitimate request for

a password or an attack.

Moreover, even as a computer engineer, I have no mean to identify the trustability and

meaning of this request.

As a first level protection, I will click on Deny.

Next I fire an investigation starting with the Apple official documentation.

I will add to this question any useful and confirmed information.

Any other hint will be highly appreciated.

The correct tags for such a question would be:

• • security,
  • authentification,
  • macOS,
  • documentation.