GeoExpress enables you to lock your encoded MG2 and MG3 files with a password. MG4 does not support security options.
The Security tab includes a Protect encoded image with a password check box. If this check box is selected you can then choose whether or not to hide the password typing with the Hide typing check box.
There is no way to access a password-protected file if you forget the password.
The password file is kept in the project file and stays with the project. Although a useful data protection feature, this is not a fully robust file security solution.
GeoExpress does not allow password-protected files to be used as input.
Only image data is encrypted; geocoordinates and other metadata are still accessible in password-protected files.