Apple and Google have put a temporary halt on workers listening to voice recordings captured by smart speakers and virtual assistants.
According to the BBC, this follows a Guardian report that third party contractors used by Apple had heard people having sex and discussing private medical information.
The report indicates that Siri and other services can activate in error after wrongly picking up sounds they mishear as their “wake” words.
Apple said the move would affect users worldwide.
Google suspended the practice across the EU on 10 July but has only just confirmed the fact in public.
Amazon – which also uses staff to transcribe some recordings – has not commented.