What does epidemic prevention bracelet binding mean?

The epidemic prevention bracelet is bound with a personal mobile phone number. According to relevant public information, the epidemic prevention bracelet needs to be bound with the mobile phone number to be used. The Law on the Protection of Personal Information stipulates that the handling of personal information should follow the principles of legality, justness, necessity, honesty and credibility, and personal information should not be handled by misleading, fraud or coercion. Guo Bing bluntly said that in the case of using health codes as a means of epidemic prevention and control, it is also required to implement electronic bracelets to further collect citizens' personal information. This practice may be suspected of excessive collection and does not conform to the principle of necessity.