Shenzhen Zhongyuan security company (Wang, 15999698349, Business Online QQ: 1812151590) specializes in digital security technology research and development, digital anti-counterfeiting label printing and production of integrated security printing company. Digital security phone password security is short, the principle is: for every one network identity set a unique password, and the password is stored in the central database, and establish a reliable telephone inquiry system across queries. Consumers to purchase the security code affixed logo merchandise, simply make a call, enter the product on password, you can know the authenticity of products, thus breaking the traditional anti-counterfeiting products is easy to take and bulk consumers easily identify the limitations sex. With the development of information technology, and now the security code query can already be text messaging, Internet, etc. queries, solid called digital security.