Today, I received a short message from Shangqiu Mobile, Henan Province, claiming to be the son of the former landlord, saying why I didn't pay back the money and that I knew my address.

First of all, do you owe money? If not, it is intentional fraud.

How did he know your number? There are many channels, such as the rental house management office and the landlord's own mobile phone number, to get the relationship between your number and the landlord.

If you don't owe money, you can save this number and content and tell the local 1 10. Don't worry about the rest.