Leaking other people's information is an invasion of other people's privacy and should bear tort liability. Everyone has the right to privacy, and the right to privacy cannot be violated by others. If you owe money, you should use legal means to recover it.
According to Article 2 of the Tort Liability Law of People's Republic of China (PRC), anyone who infringes upon civil rights and interests shall bear tort liability in accordance with this Law. The civil rights and interests mentioned in this Law include personal rights and property rights such as the right to life, health, name, reputation, honor, portrait, privacy, marital autonomy, guardianship, ownership, usufructuary right, security right, copyright, patent right, trademark exclusive right, discovery right, stock right and inheritance right.