A new study of those who use voice-activated searches have found that 64% of this group set the assistant in question off by mistake during December 2019. An accidental press of a hardware button was found to be the culprit in 49% of these cases. In others, an AI "mishearing" a user's speech resulted in these mishaps.
https://www.notebookcheck.net/Up-to-64-of-users-have-activated-a-smart-assistant-by-accident.449773.0.html