Summary:

- The article discusses concerns that Facebook may be secretly listening to users' conversations through their phones' microphones, even when the Facebook app is not actively being used.
- This accusation stems from anecdotal reports from users who claim that they have experienced targeted ads related to topics they have discussed out loud, but not typed or searched for online.
- Facebook has denied these claims, stating that the Facebook app does not access the microphone unless the user grants permission and actively uses a feature that requires the microphone, such as voice-to-text.