[notinmykernel]

Yes. It is possible intercept keystrokes for an Apple keyboard that has been previously connected to a computer or laptop. It was tested as part of this vulnerability for Apple shortcuts: https://jestlandia.github.io/apple-shortcuts-vulnerability-1....

[wtallis]

Do you have a link that actually corroborates and explains this?

[notinmykernel]

I can make one, yes. We thought it was irresponsible to release it at the time. But hey, times change. Will update shortly.