The Privacy Problem with Digital Assistants
Questions directed at Siri and Google’s voice search get sent to their respective companies, paired with unique device IDs that aren’t connected to specific users. Apple stores Siri requests with device IDs for six months, and then deletes the ID and keeps the audio for another 18 months
.. Allo will, however, come with an “incognito mode” that enables end-to-end encryption and makes message history disappear after a while, à la Snapchat.