The Maca scanned QR code I bought is real, but the security code is fake. What happened?

Two-dimensional code generally can't tell true from false! Need to understand the concepts of QR code, barcode and anti-counterfeiting code;

To be clear: barcodes cannot be used as anti-counterfeiting! Don't be fooled by bad businesses. Because the general bar code information is public, anyone can copy it, so many unscrupulous merchants copy other commodity bar codes and paste them on their fakes, pretending to be genuine. The result of barcode scanning is actually the product number, and the function of APP is to query the product information corresponding to this number.

Generally, QR codes cannot be used as anti-counterfeiting basis. In one case, if the two-dimensional code information of each package of the same commodity is different (there is an encryption number, and the manufacturing cost is high), that is, the commodity number is unique (these numbers are stored in the database by the merchant, and there is a query record).

So it's best to go to formal channels to buy things, and don't buy them when you see that they are cheap.

Not all products have security codes and websites. If it is edible, medicinal or skin care products, you can check the product records on the website of the Food and Drug Administration. If there is no record, this product is not recommended to buy.

Anti-counterfeiting codes are generally composed of numbers and letters, usually located on the packaging and coated. The serial numbers of some electronic products can also be used as anti-counterfeiting codes (the packaging is invisible unless it is damaged, so it must be hidden). If the coating of the security code cannot be scraped off, it is likely to be a forged security code or a counterfeit product. You can go to official website to inquire about the product (you can see the inquiry record). If the displayed security code has been found or cannot be found, the purchased goods are not genuine.

If the purchased product has an anti-counterfeiting code, you can inquire according to the phone number and website prompted by the product. If it can be found and displayed as the first query, it is genuine. There are generally four ways to inquire about security codes: telephone inquiry, short message inquiry, website inquiry and manual service desk. Generally, it is the most intuitive and quick to inquire about products in official website, which is recommended. If you can't find the security code information, it means that the product is probably a counterfeit product, or it may be a system problem (you need to find the manual service desk to confirm).

If the product has no anti-counterfeiting code, it cannot be completely determined that the product is a counterfeit product. Generally, the old batch of products may not contain anti-counterfeiting code, so you need to check the announcement in official website or call the official manual service desk for confirmation. If the same product has exactly the same appearance and packaging, and the genuine product has an anti-counterfeiting code, but the customer does not have an anti-counterfeiting code when buying it, it is generally a counterfeit product.