[kroltan]

Not the author, but I would say they might not be very secure, but importantly, they are _auditably_ so. You can look around to see if anyone shady is within earshot, and in many situations you can choose a (contextually) private location if you so desire.

Plus, it is a bit harder to mass surveil people, even with voice recognition, as one can go into a crowded place (or, well, could, barring current circumstances...) so most of the audio is drowned out.