Ever since the controversy arose surrounding Google training its voice recognition technology using human contractors, barely a week goes by without another company admitting to the same. While the practice doesn't come as a surprise to many familiar with the underlying technology, no company thought of clearly stating what they were doing, which is not a good idea considering rising privacy awareness among customers and regulators. Bloomberg found out that the same is true for Facebook Messenger, affecting users who turned on voice-to-text for audio messages.