Code Works – Security An Issue?

I’ve used this to sucessfully put in a small piece of PHP code to idenfity and re-direct mobile users to my site. While other methods exist, this was the way I could customise without having to change templates, or be limited to other plug in’s settings. I’ve no idea on the secruity aspects of using this plug in, but the latest update has changed some of the shortcode, so am assuming this is safe to use.