#2 15 Dec 2014 08:04
I'm afraid that I didn't fully understand your comment.
I saw, in the backend there the scripts from jquery.com will be download to show some of the elements.
If you mean the piece of code displayed in the image above, that's a common technique called CDN that, as everything, some people like it and some people don't. But, in general, it doesn't imply a security risk, specially if we work with trusted servers like jquery.com or bootstrapcdn.com.
However, this may be overridden just commenting the lines of those scripts that you don't want to load from the CDN. In that case, the local copy (that is already included in the standard packages of b2evolution) will be loaded.