ChatterNet is a communications network that is like social media. It's centralized on Earth, but the service can be applied to every colony. It is considered very secure; it can even be compared to military communications networks. If you know where to look, however, it can also be used to discreetly communicate without being seen by the Chatter Protocol Authority, The Office of Naval Intelligence, or the United NAtions Space Command. This side of it is generally used for business transactions. Though, going offline restricts access to most features, as they are covered by the Surveillance Grid. As secure as it is, however, it is not impenetrable. Experienced hackers have broken in through the ChatterWall firewall system in the past through a process called ghosting. They can spy on conversations and steal identities.
A Chatter is a wrist-worn computer that connects directly to ChatterNet. It can contact other users, keep calendars, and store different types of files, like audio. Some stores sell disposable Chatters for colonial refugees and poverty-stricken citizens that cannot afford a service.