A media firm that has worked with the likes of Google and Meta has admitted that it can target adverts based on what you said out loud near device microphones.

Media conglomerate Cox Media Group (CMG) has been pitching tech companies on a new targeted advertising tool that uses audio recordings collected from smart home devices, according to a 404 Media investigation. The company is partners with Facebook, Google, Amazon, and Bing.

In a pitch deck presented to Google, Facebook, and others in November 2023, CMG referred to the technology used for monitoring and active listening as “Voice Data.” The firm also mentioned using artificial intelligence to collect data about consumers’ online behavior.