This is an heavily encrypted channel, where high-ranked personnel does analysis of important information regarding anything that's classified and can have its use is certain way. Analysis of specific data in this channel is exclusively visible to high-ranked personnel (High Command Personnel), and they are the only ones analyzing the classified data.
Classified Data can represent anything. For the purpose of getting more knowledge of situation, the analysis are being made of certain subjects. Analysis requires high computer technology and personnel is in ability to analyze subjects, which is High Command of le Maquis. Location of the analysis is only known to the High Command and the squadron that's defending the Classified Data.
This is l' agenda (diary) of the Classified Data that is heavily encrypted.