All sensitive information in the data tables are stored encrypted and cannot be altered (or deciphered) by unauthorized programs.
It's important to understand the editing the Secwin data tables through a program that does not know, or use, the program secret is not possible. The use of tools like TopScan, or SQL Enterprise Manager therefor have limited use when it comes to these tables. Even data which is stored in plain text (like the user login or user name) is protected via a hash. Changing these values will prevent these records from being used in your program.
Encrypted fields are stored as base-64 encoded, so they can more easily be exported to text etc.
Binding specific security tables to an install is a nuance topic, and discussed in the Security Table Distribution section. When the time comes to start distribution this is a section you will want to read through carefully.