What is the security lock in the health password?

The security lock in health code is an extra layer of security. Inquiring about the relevant public information on the website shows that the addition of health code undoubtedly adds a safety lock to cold chain food, which is conducive to boosting consumer confidence and promoting the healthy development of the industry. Health codes are based on real data and can be generated by citizens or people who have returned to work through online declaration and background audit.