Since all the data used in the program is stored in data files it is important to ensure that that data is not accessible to users via the web. For example: If your data files are stored in /listman/data/ it is important to ensure that users are unable to view or download those data files by typing the URL of the data directory and a data file into their browser. In most cases your web server can be configured to disallow this. Talk to your server administrator for more information.

In addition to protecting data files it is important to be aware of file permissions. When giving written permission to data and other files it is important to ensure that you are not allowing other users that may have accounts on the web server access to your files. In some cases where a single web server hosts many websites and users, one user may be able to read or write another users files if file permissions are setup incorrectly.

If you are concerned about security and would like more information, contact your server administrator.