>I'm actually surprised we have not yet seen an entire industry built around human authentication. Seems like Apple is the only company taking this seriously.

Completely agree - but to that - with how quickly AI voice cloning is improving, and how quickly image creation tools are improving, how long will it be until someone can sample my voice well enough to command Siri to do something and Siri won't be able to tell the difference? How long will it be until an AI generated photo of me is so realistic that it can unlock my phone via FaceID?

I have a feeling that's going to happen in a shorter timeframe than we all think it will. I mean, my voice is somewhat similar to my father's, and if I'm around his phone, I can say "Hey Siri" and his phone will think it's his voice, not mine.