Dennis is vacationing and he's concerned about privacy on the public hotel Wi-Fi. Leo says that's when a Virtual Private Network, or VPN can come in handy. It's like a tunnel through the internet that is encrypted and nobody can see his traffic. But it will be a little bit slower. He uses TalkaTone and wants an encrypted phone line. Leo says it's a good option, but he also recommends RedPhone. It has end to end encryption. It requires that both parties are using the same technology, but it's very private and secure.