In recent days, hidden cameras are becoming a serious treat everywhere. They are becoming more problematic with cheap options disguised as everyday objects. However, such cameras is useful for legitimate purposes too, like monitoring your house for burglary when you are not at your home, they are often misused. Many hotel rooms are using such hidden tiny cameras that are able to live stream footage even in dark. Hidden cameras is now a problem in common areas. Services like Oyo and Airbnb have found hidden cameras in the rooms. But if you are planning to stay in a shady hotel room in a pinch, here you have an easy and quick way to spot a hidden camera. A smartphone is the only thing you need.