Then why does your link claim the following?

> While you type, the keyboard quietly records how you type — the rhythm, the pauses between keys, where your finger lands, how hard you press.

> Nobody types the same way. Your pattern is as unique as your handwriting. That's the signal.

I’m sceptical about this idea but, to give it full credit, it’s a custom piece of hardware that would presumably be more accurate than previous software-only attempts. Maybe it will actually work this time, idk, although I still don’t really see the point.