After installing this plugin my admin page opens with a message which says I need to apply my Wanguard key. That message is underlined in blue, suggesting it is a link to the the Wanguard site where I can obtain a key. Clicking on the link produces a message which says I do not have permission to access this page. I then get logged out of my own site! This unacceptable behavior begins again as soon as I log back in!!! So I finally logged back in, ignored the Wanguard message, went to my plugins page, deactivated then deleted the plugin. I will now try what looks to be a competing solution.