Security is most important when sensitive data is involved. There are many ways to make sure data are secure on the site. While most data should be securely stored in a database server, not all of them are. For example, some files that one file depends on must live on the server. In the case of PHP, you might need a file that contains the physical data to make a database connection, or the files to be included in another file. In this case, where you store them is extremely important. In this video, we’ll explore one easy method to secure private and sensitive data files on the server when using PHP.