Those sites I have moved to new hosting have a free SSL Security Certificate generated. When it is turned on and some changes are made to the website most of the accesses are now done over an HTTPS:// connection. (Like your bank.)
It has not been necessary or cost effective in the past, but as these certificates are free, we should be able to use them.
Another factor is Firefox has changed recently and puts this message up over a login box on any site that does not have an SSL or https:// connection:
There was no real requirement to make it secure. Those small number of sites I am aware that were compromised by hackers, the entry was gained because one of the administrators email accounts was hacked first. However it remains a possibility that someone could grab your username and password.
I will make all sites run under SSL after they have moved over and have been checked. This means all sites will support encrypted connections to maintain security. You can find out more about security and SSL in this article.