wget will not pull information from a Wordpress site fully secured by iThemes Security. Attempts to pull information from sites with iThemes or old installs of Better WP Security return 403 forbidden. Our sites using Wordfence do not seem protected from wget, but I have not looked into why this might be. This is a great solution to getting files and has come in handy countless times for our group, but if the target site in question uses iThemes Security fully, this is a no go.