What does it mean to receive GS by QR code?

Those who collect money

A QR code is actually a two-color rectangular matrix that uses specific geometric figures according to certain rules to be distributed on a plane (that is, in a two-dimensional direction) to record data. A new generation of barcode technology that symbolizes information and looks like a two-color square maze.

It is different from common barcodes (ie one-dimensional codes). In terms of information expression, QR codes can express different information simultaneously in both horizontal and vertical directions. Therefore, the amount of information that can be stored is dozens of times that of bar codes, and it can integrate images, sounds, text and other information;

Functionally, QR codes not only have basic identification functions, but can also display more detailed product content. Not only is it easy to read, it also saves paper.

Be careful about "hiding poison" QR codes

While enjoying the convenience of QR codes, you should also be careful. Don't just swipe the code when you see it. Be careful about QR codes. Spread the virus. Experts from China Mobile's Internet of Things base once said that QR code technology has matured and its threshold is actually very low.

Ordinary netizens can search and download a QR code generator on the Internet to create QR codes according to their own wishes. There has been a virus that disguised itself as a mobile chat software and provided a download link through a QR code. Once the user downloads it, he will continue to receive automatically sent fraudulent text messages.