it looks like the message you get when you log into an http site rather than https? Have a chat with customer support and see if they can switch you? (I find using the chat bubble bottom right corner of your site is the best way to contact them).
If that's not the case, then I'm not sure. I don't get that message - perhaps it depends on the browser you're using?
Not sure what all that means :P I'm using Firefox, and when I access either my own site or these forums, they both show "https" in the url, and I've not had that message on either. If you're switching your login from http to https or visa versa, potentially that may be the cause, or, as I mentioned before, it might be something your browser has flagged.
The only things I could suggest is just a matter of testing trial and error .. and/or speaking to CS.