FTC finds apps using phone microphones to track TV viewing

A common frustration for smartphone users involves seeing online advertisements for products discussed in private conversations. While many assume devices are actively recording these talks to build a profile, the mechanism is often different. The Federal Trade Commission recently identified a specific method where applications use microphones to track television viewing habits.

The FTC found that several apps contained software capable of accessing a phone's microphone while running in the background. This software listened for inaudible audio signals embedded in TV commercials. By detecting these signals, the apps could identify which programs or advertisements were playing nearby. The software then created logs of this viewing activity for use in advertising and analytics.

The agency issued a warning to app developers regarding this practice. The FTC stated that users need to be informed when this type of tracking occurs. This finding adds to existing evidence that audio information collected through phone microphones has been sent to companies other than Apple or Google.

Apple outlines three primary reasons why an iPhone listens to a user. The first is to activate voice assistants like Siri or Google Assistant. When these features are enabled, the phone listens for a wake-up phrase. Once activated, the device may send audio to servers for processing. The second reason is to support app functions. Applications such as Facebook and TikTok require microphone access to record video, send voice messages, or make calls. The third reason is to improve voice recognition. Some companies process voice recordings to understand speech patterns and accents, a feature Apple lists as optional.

There is no public evidence that social platforms routinely record conversations to target advertisements. However, the data collected through these methods allows advertisers to predict user interests without a direct search. Access to behavior, shopping habits, locations, and interests enables companies to infer what a user might want before they look for it.

Users can take steps to limit this tracking. To stop the constant listening for voice commands, one can turn off the wake-up phrase feature in the settings menu. Specifically, navigating to the Apple Intelligence or Siri section allows users to turn off the talk and type option.

Reviewing microphone permissions is another effective measure. Users can go to Privacy and Security settings to check which apps have access to the microphone. Turning off access for apps that do not require it reduces the window for data collection. A small orange dot appears at the top of the screen when the microphone is in use, providing a visual indicator of active listening.

The FTC's findings clarify that while phones may not be constantly recording conversations, they are often collecting audio data for other purposes. This data contributes to the digital footprint left by users of the internet and smart devices. The ability to track inaudible signals in background media demonstrates a specific channel through which this data is gathered.