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Comment by matheusmoreira | Hacker News Reader

Wish modern hardware had better support for this. I don't think I'll ever trust their proprietary firmwares. The problem is becoming so widespread. All kinds of peripherals have firmware now. Who knows what they're doing. Did that storage device really delete the data or is it just pretending? Only way to be sure is to physically destroy the device.

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> Only way to be sure is to physically destroy the device.

Or ... never write unencrypted data to the device.

Yeah, that was my solution as well. It's much easier to destroy a small secret key than terabytes of data.

Especially with N-of-M secret sharing.

I thought something along these lines when it comes to peripherals, too, but don't these (mice and keyboards chiefly) communicate with PCs through a subset of the USB standard which only handles HID and nothing else?

Would any snooping be possible through an input device if it only did HID?

> PCs through a subset of the USB standard which only handles HID and nothing else?

Yes. Is the device truly limited to doing just that, though? No way to know. I don't know enough electronics to tear it down and analyze its parts, much less dump firmware and reverse engineer it.

>Would any snooping be possible through an input device if it only did HID?

For all I know, it could be silently storing every keystroke in some small memory module hidden somewhere.

We had that problem with PS/2 keyboards too, you can buy hardware keyloggers for those.

AFAIK it wasn't possible for a PS/2 connected thing to suddenly present itself as some sort of drive, present a file on that, and then have that executed via autoload, or so.

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