Do you see a little dot of light in the top right corner of your smartphone screen? Be careful, an app may be trying to spy on you, using your phone's camera or microphone without your knowledge.

Sometimes, a tiny, mysterious white dot appears at the top of your Android phone's screen on the status bar without warning or explanation. Its actual job is simple yet maddening. It tells you that ...

No, you're not seeing things: Your Android device sometimes displays a small green dot in the status bar. Likely nestled next to your battery icon, it comes and goes, but never seems to stick around.