Formulating relevant regulations according to ethics and laws, limiting the arbitrariness of big data output, allowing companies wishing to use big data to apply conditionally according to regulations, and allowing the use of big data to be inspected regularly may be the key to truly solve this problem.

We have seen that some real estate agencies deliberately conceal relevant information to mislead consumers, overcharge in violation of regulations, collect fees in disorder, fail to return the deposit as agreed in the contract or even collect rent from consumers, etc., resulting in damage to consumers' rights and interests.

Information should be equal and symmetrical to maximize the interests of both parties to the transaction. If one party has all the information and the other party knows nothing, it will inevitably lead to unfairness and inequality in the transaction. The output and application of big data information will become the most controversial place in morality.