The key distribution service belongs to the 4002 group of trademark classification 40.

Physical stores with keys need to apply for a business license from the industrial and commercial department. However, according to the "Online Transaction Management Measures", ordinary Taobao stores are not forced to apply for a business license, so Taobao's key is actually illegal.

In my country, unlocking is a special industry and requires industrial and commercial registration and filing with the public security department. However, there are no relevant requirements for matching keys. Relevant legal professionals said that even if a key is assigned in a physical store, it cannot be proven that the person who assigned the key is the owner of the key. But in most cases, consumers who take the original key will be regarded as the owner of the key, and the agency that distributes the key does not bear responsibility. But it's different with photos. The agency that distributes the keys is responsible for verifying their authenticity. Before the relevant national departments issue detailed rules, on the one hand, online key distribution may bring security risks to users, and on the other hand, the key distribution institution itself will also bear liability risks.