Ma Rong, wife of actor Wang Baoqiang, entrusted her lawyer to file a lawsuit in a court in Beijing's Chaoyang district on Tuesday, accusing the actor of maligning her reputation by writing on his micro blog that she had an affair with his agent for which he was divorcing her. Ma has demanded that Wang delete the post and apologize to her.

The Chaoyang court has formally accepted the lawsuit. But people cannot help but wonder why Wang cannot make a statement saying he was dissolving his marriage with Ma after he found that she was cheating on him?

Some lawyers argue that a couple's marital matters－love, affection, arguments, disloyalty－are part of their privacy if they are not known to others and thus should not be made public by anyone, husband and wife included. Adultery, too, is part of a person's private affair and therefore should not be revealed even by the husband or wife, the lawyers say, because it violates the person's privacy rights and could constitute a libel.

But others believe a person's privacy is not boundless, and if a person's seemingly private matter constitutes a violation of others' legitimate rights, it can be made public.

This debate fails to touch the essence of the problem. There are no explicit stipulations in China's laws on privacy protection, although there are legal clauses on a person's right to reputation and dignity. If one person damages another's reputation, he or she should undertake civil liabilities or bear criminal responsibility. The same applies to cases related to personal dignity. So if disclosing an individual's personal information unknown to others harms his/her reputation, it becomes a typical case of libel or character assassination.

In the Wang-Ma case, the actor's disclosure of his wife's extra marital affair does damage her reputation. But Wang's act is essentially aimed at safeguarding his marital rights and thus cannot be construed as a libel, especially because he claims to have sound evidence about Ma's extra marital affair, which is a violation of their marital contract.

In legal terms, the protection of a person's right to privacy does not mean the protection of all of his/her private matters. Many countries have enacted specific laws on such kind of protection. If the protection of citizens' right to privacy clashes with national interests, public rights or other citizens' legitimate rights and interests, it can be legally restricted. In other words, no individual can refuse to provide evidence for the protection of national interests by citing his/her right to privacy. The same rule applies to cases that involve the protection of public interests or other citizens' legitimate rights.

Ma's affair is a serious violation of her husband Wang's marital rights. And if Wang had not made her disloyalty public, he could have been in a disadvantageous position in a future lawsuit as the defendant. By revealing Ma's extra marital affair, Wang has prevented Ma from possibly confusing public opinion in the future.

Prioritizing the protection of individuals' right to privacy even in cases that could damage national interests or other citizens' rights is a sure recipe to fuel moral chaos in society. It is absolutely necessary to protect individuals' right to privacy, but this principle has a precondition－that such protection does not damage national or public interests or infringes on other citizens' legitimate rights.

If a totally unrelated person reveals an individual's extra marital affair, then a lawsuit can be filed against the former for damaging the latter's reputation. But such a lawsuit is uncalled for when one of the spouses comes out with such a disclosure. That no one can benefit from his/her illegal acts should become one of the basic codes of conduct.

The author is a professor of law at Zhongnan University of Economics and Law.