In this video, I show you how to spot hidden cameras using only your phone—no special gear. Hidden cameras in Airbnbs, hotels, or public places are more common than people think, and I even mention a study claiming there’s around a 20% chance of a hidden camera in an Airbnb (even though it’s illegal). So I jump straight into three practical techniques you can do in minutes on both iPhone and Android. First, I use infrared detection: I open the camera app, turn off the lights, and scan the room for anything that glows white or blinks—because some cameras emit infrared light that our eyes can’t see, but phone cameras can. I also show a quick test with a TV remote, and I point out that on iPhone, the front camera (selfie mode) is usually more sensitive to infrared than the rear camera. Second, I use the flashlight trick: I sweep the room and look for a glint or reflection from a lens. Third, I check Wi‑Fi and Bluetooth in settings to spot suspicious devices broadcasting a network name or trying to connect. I also address paid “hidden camera detector” apps: I haven’t tested them, so I can’t vouch for them—if you’ve tried one, I ask you to share your experience.