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Professional security features are also called second-line security.
Professional security features are usually called second-line security. These characteristics are advanced technical means to identify and verify the authenticity of products. Compared with first-line anti-counterfeiting (such as labels and bar codes), professional anti-counterfeiting features adopt more complex and difficult-to-forge technologies, which can provide higher anti-counterfeiting effect and security.

There are many professional anti-counterfeiting features, including but not limited to the following:

Optical characteristics: the use of special optical effects or substances, such as optical discoloration effect, optical microstructure, infrared/ultraviolet reaction, etc. The authenticity of the product can be verified by observation or instrument testing.

Chemical characteristics: using special chemical components or markers, such as fluorescent dyes and tracers, the authenticity of products can be determined through chemical analysis or reagent verification.

Physical features: Features designed according to physical principles, such as micro-patterns, special textures and invisible patterns, need to be observed and identified by means of microscopes, infrared instruments and other equipment.

Biometrics: Anti-counterfeiting measures based on biological characteristics, such as DNA markers and biological structural features. , through biological analysis or testing to verify the authenticity of the product.

Digital features: By using cryptography, digital watermarking and other technologies, the anti-counterfeiting information is embedded into the product or its packaging, and the identification can be verified by scanning and decoding.

These professional anti-counterfeiting features usually need advanced technology and equipment to detect, and it is difficult for ordinary consumers to directly observe or judge. They effectively improve the anti-counterfeiting ability of products, help to crack down on counterfeit and shoddy products and protect the legitimate rights and interests of consumers.