and like all doors, they're safer when locked. that's why you need xfinity xfi. with the xfi gateway, devices connected to your homes wifi are protected. which helps keep people outside from accessing your passwords, credit cards and cameras. and people inside from accidentally visiting sites that aren't secure. and if someone trys we'll let you know. xfi advanced security. if it's connected, it's protected. call, click, or visit a store today.