I am on Joomla 3.2.2.
After testing some other plugins, which did not work as advertised, I found the Content Protector Advanced Edition.
The cost is very reasonable and the installation was quite easy (I am newbie).
After the installation, I noticed most pages were working just fine but, my home page and some other scattered content were not protected.
A quick email was sent and they responded within 90 minutes. After granting access, the issue was resolved in a few minutes.
It is working fine with all my content plus JomSocial, Kunena, Breezingforms, Babel-U and my other components so, I am very pleased.
I recommend this component to anyone wanting to secure their site.