Russell has an iPhone SE and was using an app called Tether to use his cell phone as an internet hotspot. It doesn't work anymore, though. Leo says that it's been replaced by the hotspot feature in the phone, but his provider may not support it or may charge him a monthly fee to use it. Some carriers don't charge for it at all, like T-Mobile. But resellers, like Boost don't support it because the major carrier they work with doesn't. Will a VPN fix it? Leo says not for hotspotting, but a VPN will work for keeping his internet access encrypted and secure in public Wi-Fi hotspots. Leo recommends Tiny Hardware Firewall.