As you may know, when you send a message from the Messenger app there is an option to send your location with it.

Travelling can be enriching and inspiring, especially if you’re in a place you haven’t been before. Whether on vacation or travelling for business, one of the first things that people usually do, including myself, after arriving in their hotel room, is turn on the lights (even if daylight is still coming through the windows), jump on the bed to feel how comfortable it is, walk to the window, and admire the view. If you like what you see, sometimes you grab your camera and take a picture, regardless of reflections in the window.

Without considering geolocation metadata [1] (if enabled), reflections could be a way to get more accurate information about where a picture was taken. How could one of glass’ optical properties [2], reflection, disclose your location? Continue reading.