Link: Siri, Privacy, and Trust
Accidental interactions occur when the button is pressed too long accidentally, or when a device incorrectly hears “Hey Siri” even though you said no such thing. All recorded Siri interactions should be treated by Apple with extraordinary care, but accidental invocations, when identified, should be deleted immediately unless the user has expressly agreed to allow it — each and every time. Having Apple contractors listen to random conversations or audio is the nightmare scenario for an always-listening voice assistant.
Amen.