Is it a crime for someone to send a message with a foreign number saying that my wife cheated?

Someone can know this number, which may have some important information.

First of all, we must confirm the identity of the other party and see if there is any fraud. If you are a fraudster, if you are threatened personally, you need to report it in time. At present, fraudsters use various channels to extort and swindle online, and report such strange calls in time to avoid being deceived.