Is it safe to store the database connection strings in the INI file after they are inconsistent or operated? Is it easy to be decrypted by others?

Is it safe to store the database connection strings in the INI file after they are inconsistent or operated? Is it easy to be decrypted by others? Delphi/Windows SDK/API
Http://www.delphi2007.net/DelphiDB/html/delphi_20061217102522257.html
RT

Watch your software saveProgramIf it is high, it is better not to use it. If it is not high, it should be okay.

Is the degree of confidentiality

Put it in the INI file. This is not safe.
Unless used internally
It is best to make a database operation module closed to DLL
Or create an intermediate layer.
It would be better.

Do you know the degree of confidentiality of an exception? You only need to deal with common users.

Use des to encrypt the data. Of course, the password used for DES encryption can only be stored in the programCodeThe security of the password is a problem.

Is it better to implement layer-3 security? After all, client users cannot access the application server.

Layer 3 is the best. The application server is on the system administrator's side, and the password administrator knows it.