The TrilogyEC Professional Edition was developed by Trilogy Solutions, Inc ( TSI ) as an absolutely FREE encrypted chat, instant messaging (IM) and file transfer application. 
TrilogyEC utilizes 256 bit Advanced Encryption Standard ( AES ) cryptography to deliver U.S. military grade security in an instant messenger / chat hybrid program. With the TrilogyEC, you can collaborate with up to 5 people simultaneously in a completely secure environment without the need (or risk) of public servers.
The TrilogyEC was designed for use in the U.S. Department of Defense (DoD), in any size business, on college campuses, and even at home between family & friends.
The TrilogyEC communication platform is "server-less", which means that your TrilogyEC information does not pass through or reside on a server.
Consider this: Most (if not all) currently available multipoint chat applications require a "middleware" server to relay communications from one client to others. This, of course, means that at some point in time, every shred of your valuable data resided on some third-party computer before making its way to your intended recipient. Do you really trust them?
Additionally, that same "middleware" server is very aware of the identity (via IP addresses) of those with whom you communicate.
Not only does the TrilogyEC not have a server, but even the relay code itself is encrypted so it can't be snooped.
By delivering a completely free multipoint communications platform with world-class security, and without dependency upon third-party servers, TrilogyEC marks a revolution in Internet text communications. Welcome to the revolution.