It's not specifically named in the article, but the software shown with the firewall popup is Little Snitch, and it's great: http://www.obdev.at/products/littl

It's not specifically named in the article, but the software shown with the firewall popup is Little Snitch, and it's great: http://www.obdev.at/products/littlesnitch/index.html http://www.obdev.at/products/littlesnitch/index.html