Amazon reportedly has thousands of workers listening to Alexa chats

Amazon reportedly has thousands of workers around the world listening to people’s private exchanges in recordings captured on Echo devices after the wake word is detected

https://www.bloomberg.com/news/articles/2019-04-10/is-anyone-listening-to-you-on-alexa-a-global-team-reviews-audio

https://www.digitaltrends.com/home/what-is-amazons-alexa-and-what-can-it-do/

https://www.amazon.co.uk/gp/help/customer/display.html?nodeId=201602230 (quote is from linked past version of page, current page more extensive)

Alexa enables you to control and check the status of a variety of smart home devices, such as lights, electrical sockets, cameras and thermostats.

Also:

https://www.digitaltrends.com/computing/microsoft-contractors-no-security-measures-skype-cortana-review/

Microsoft contractors reviewed Skype, Cortana audio with ‘no security measures’