https://apnews.com/33cf753dbc2147ad98a0e844214e96d8

NEW YORK (AP) — Facebook has paid contractors to transcribe audio clips from users of its Messenger service, raising privacy concerns for a company with a history of privacy lapses.

The practice was, until recently, common in the tech industry. Companies say the use of humans helps improve their services. But users aren't typically aware that humans and not just computers are reviewing audio.