They build this picture from many other sources besides ad clicks, so the point is to obscure that. Problem is, if you’re only obscuring your ad click behavior, it should be relatively easy to filter out of the model.

I hadn’t clicked the link yet, but Concrete Donkey told me what it was immediately

The ‘S’ in IOT stands for Secure

Have you looked into Ubiquiti equipment? They’re generally pretty solid, and might have everything you need.

I’ve always wondered, does the ear experience additional, unheard “loudness” when using ANC?

Absolutely! Biometrics are at best a username, not a password.