Why can't the pictures sent by WeChat chat be located?

First of all, we can ask others to take a photo for you during the chat. A photo is any photo, which can be said to be the weather or the environment. Even taking a photo of a finger can locate the specific position of the other party. For example, the following friend, when people send pictures at first, will use vagueness as an excuse to ask people to publish the original pictures.

After we get the picture, we can upload it to the computer, or use the computer to receive the picture and download it to the desktop. Right-click the properties of the picture, and you can see the positioning information of GPS in the properties. Note that the positioning coordinates must be the original map, and the other one needs the other party to turn on the GPS, otherwise the coordinates will not be located.

Then the above picture is the positioning information of GPS. When we use a map, we can directly enter this address to find accurate information. This method is used in the street view map of sogou in my blog. Our website will also use such a set of numbers when calling the location map, and this set of numbers is actually the positioning information of GPS. With this set of numbers, we can directly query the exact location and even query the angle information he shot.

Through the test, I took this set of numbers and found the location on the map accurately, and the location was very accurate. So the question is coming, isn't it dangerous? It's easy to reveal our privacy.

In fact, for this question, WeChat also answered, acknowledging that it is indeed possible to locate the location through pictures. In addition, wechat replied that as long as the GPS is turned off, it will be fine. In addition, this is not just about revealing the location on WeChat. If you send the original picture, you will also leak the location through transmission tools such as SMS and email. If you are worried about the location when you send it, you can choose not to send the original picture, then this picture is compressed by WeChat, and everything about the location and time has been disposed of.

Then the problem is coming. Many netizens said, "Does the picture of the circle of friends show the traces of the day?" In response to this question, WeChat replied that the pictures in the circle of friends are all compressed, and there is absolutely no GPS address displayed, so this is a rumor.

Summary: In fact, this problem was captured by smart phones, not WeChat. It's just that people use WeChat to send more pictures, so many people think it's WeChat. But personally, I don't think it is necessary to care so much about this kind of thing. In addition, turning off GPS or not sending the original image can solve this problem well.

reference data

Sina Weibo. Sina Weibo [reference time 2018-1-10]