"A tunnel is an online place for a private conversation between two people. We call it a "tunnel" because it is a discreet, direct connection between the two confidants...There are many sites and apps that offer "chatting," but these are not private. On other sites you give information about yourself to "join." To register, you confirm with an email address, for example. Tunnel X knows nothing about you. We don't have your name or email address."
