Because you don't have an Android? I don't remember the last one I had that didn...

i_am_jl · on April 13, 2023

Try plugging a keyboard into your phone.

That setting does not work the way you think it does.

yencabulator · on April 13, 2023

(Apart from very low level USB firmware stack attacks:)

That's a purely software issue, though, and actually easier to solve on phones (with built-in display+input) than on PCs (how to trust a keyboard/mouse without having keyboard/mouse to input approval with?).

https://usbguard.github.io/

i_am_jl · on April 18, 2023

>That's a purely software issue, though,

I know, that's why I'm so annoyed! And Android is already half-way there; they've already acknowledged that I should be able to control how my phone interacts over USB with a PC, now all that's left is a proactive control that sets the mode for the USB port globally instead of asking my preference in reaction to a device being connected.

>and actually easier to solve on phones (with built-in display+input) than on PCs (how to trust a keyboard/mouse without having keyboard/mouse to input approval with?).

I feel like PCs are less of an issue; I'm not out with my PC at a coffee shop or bus station when suddenly I'm tempted to use the publicly available USB keyboard. At least to me phones and tablets seem like the problematic devices here since charging them (with a wire at least) necessitates connecting them via USB.