Do you know that the photos in your mobile phone will reveal your privacy at any time?

Do you know that the photos in your mobile phone will reveal your privacy at any time?

Some people may have experienced that when having dinner at a friend's house, the selfies that are not positioned in the WeChat group will be discovered by friends who are not on the scene. Are they legendary "hackers" or magical fortune tellers? Recently, the circle of friends was blown up by an article about "the original photo will reveal the location", which attracted the attention of friends and made people feel uneasy. In order to find out the answer, the Information Times asked the mobile phone application experts for verification.

90% of mobile phone enthusiasts don't know that any smartphone has something called Exif when taking pictures. It includes image data such as shutter, aperture, iso, white balance, date and time, and an important information, location information! If left untreated, these Exif parameters will always exist. When taking pictures, the software calls the GPS data in Exif, which comes from the sensors and gyroscopes inside the mobile phone, and accurately records the position and time when taking pictures.

Anhui tv's "Who is the Survivor" once made a test program of abducting and selling children. Dressed as a liar, the host used the photos of the children exposed by parents in the circle of friends to obtain the location information of the children. Then use photos to reduce the child's vigilance. After some clever cajoling, the child happily followed the liar. Although this is only a test, if it is a real event, the consequences are unimaginable.

So what about the photos after Meitu software? As it turns out, all kinds of photos processed by Meitu software will display location information in the photo album, and many beauty software have their own positioning function. Apple's mobile phone camera positioning closed path: settings → privacy → location service → camera → never; Android phone, open the camera application to find the settings button, find the "save location" option, and choose not to check it.