https
instead of http
in the URL.
In this particular case, use https://www.someprofs.org/moodle
instead of http://www.someprofs.org/moodle}
.
Now, don't try it now, I'll need to explain a screen first.
HTTPS stands for ``HyperText Transport Protocol over SSL'', and SSL stands for ``Secure Socket Layer''. The bottom line is that all data transferred between the browser computer and the server computer is encrypted, end-to-end. This means that people can sniff your network traffic, and still have a hard time deciphering the actual content transmitted.
Of course, nothing is really secure. The U.S. government probably has machines that can break this kind of encryption in minutes to hours. Nonetheless, the average person doesn't have enough processing resources to make encryption breaking practical.