This house has no security measures.

Look at the property service agreement you signed. The maintenance of security and order should be described. In addition, the qualification level of property management companies is also related to this, depending on how many hours of order maintenance they provide all day and what content services they provide. If the property agreement is one day 16 hours, then the property company is not responsible for what happens at other times. If a case occurs within the agreed time, you must also have evidence to prove that the property service is dereliction of duty before you can go to court (evidence can be collected by lawyers and other professionals, otherwise the evidence that may be collected will be invalid because it is not in compliance with the law).

If you are not satisfied with the service of the property, you can set up an owners' Committee in the community, and the industry Committee will hire a property company to manage and serve.