Got iPhone? Jeffrey has a look at the first iPhone firewall:
This week I’ve been using the Guardian Firewall + VPN on my iPhone and iPad. It’s a firewall and a VPN (virtual private network; they’re all the rage these days), but the firewall does not reside on the iPhone or iPad. It resides at the other end of VPN so it blocks unwanted trackers from grabbing information from you and sending it off to who knows where.