[leonroy]

> I have seen in the UK solder used to physically block usb ports on laptops

With devices moving to USB-C for data and charging I wonder how security companies are going to prevent physical access to USB ports...

[sametmax]

You'll remove the USB controller from the USB port on the laptop, then provide an adapter that has a USB controller, and plus it to the regular usb cable.

[Sholmesy]

Disable the USB controller?

[megous]

It's necessary to negotiate the power requirements.

[Sholmesy]

I did not know this, that is interesting.

As in, the OS driver for the USB controller? Feels like a lot.

[megous]

Google USB-PD. Devices on either end of the USB cable could be dumb, and it would revert to some base minimum requirements (5V 500/900mA or so). But notebook may not be able to negotiate for higher power or higher voltage for charging.