I was talking about the risks of having a USB device (not a keyboard, nor a mouse) being able to _act_ as one, delivering payloads. It can look like a normal us

I was talking about the risks of having a USB device (not a keyboard, nor a mouse) being able to _act_ as one, delivering payloads. It can look like a normal usb drive or be tiny like a yubico key. My subthread started as a reply to "Want to transfer files between computers? Can't use a thumb drive" and I wondered if that on its own - disallowing data transfers by say blocking USB mass storage device drivers or something - is useful or enough, when anything I can connect via USB can _act_ as a keyboard for example. At no point did I talk about bringing an actual keyboard or mouse anywhere.