[UweSchmidt]

The email problem may be solved separately by a yet unknown solution - maybe encryption will be part of the next Iteration.

"Personal assistants" that listen in on conversation, waiting for a keyword - that's a completely different dimension than "just" reading email.

[drzaiusapelord]

You can disable the 'always listening' option in most (all?) of these products and just have a press to talk option. I leave mine on for convenience. There's no law saying you need to if you want to use these technologies.

[UweSchmidt]

- defaults matter and shape behaviour/expectations - disabling these options is often difficult - other people's phones listen to me as well - ...