Is it illegal for a guarantee company to collect customer information through a bank?

Violation of the law may be suspected of the crime of revealing citizens' personal information, which violates Article 253 of the Criminal Law: "Any staff member of a state organ or financial, telecommunications, transportation, education, medical and other units who, in violation of state regulations, sells or illegally provides citizens' personal information obtained in the course of performing their duties or providing services to others, if the circumstances are serious, shall be sentenced to fixed-term imprisonment of not more than three years or criminal detention and shall also or shall only be fined.