The "not secure" most commonly happens if you have an embedded image or other media from a http site (no SSL/TLS) on a https site. A single [code][img]http://someimagesite.com/someimage.jpg[/img][/code] will do it. Also, neither [code][noparse][/noparse][/code] nor [color=00a99d][noparse][code][/code][/noparse][/color] tags evidently affect links... Links [i][b]will[/b][/i] be parsed. No! Matter! What! (Just in case anyone is wondering - yes, the tags are completely different colors.)