The green indicator can appear while using apps such as the camera, video calling services, voice recorders, or social media apps. In many Android versions, swiping down or tapping the indicator can show which application is using the camera or microphone.
Seeing the dot does not automatically mean someone is spying on you. If it appears while you are actively using an app that needs the camera or microphone, it is generally normal. However, a green dot appearing unexpectedly can be a reason to check which app has permission to access those features.
You can review camera and microphone permissions through your phone’s privacy settings and remove access from apps that do not need it. Keeping Android and your apps updated and uninstalling unfamiliar applications can also help protect your privacy.