Second, according to itself, can it be established or invalidated? If it can be invalidated, then the other party's complaint about your infringement will not be established.
Third, if there is no problem with the other party's basis, then you should consider stopping the infringement. If you are a direct infringer, you will face the problem of compensation. If you buy an infringing product without knowing it, it is an infringement, but you can not bear the liability for compensation, but you still have to stop the infringement.
Fourth, if your infringement is very bad, which belongs to pirated books, pirated CDs, counterfeit other people's products, etc., please ignore 123 and wait for punishment directly.