Program: TrilogyEC - encrypted communicator
License: The TrilogyEC Professional Edition is absolutely free to the public.
Description: 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.
Website: http://www.trilogysolutions.com/trilogyec-download-usb.html