0 (P) - public media, including non-awared people
1 (XF) - cross-faction communications.
2 (FC - faction common) - common communication between faction members
3 (MM - media management) - managing public relations on lower levels
4 (FT - faction-wide operational tactics/temporary) - particular event/operation related communications
5 (FM - faction-wide tactics management) - command and control of particular operation
6 (S - secure agent access) - common operation tactics and strategic communication
7 (SM - secure management) - securing access to levels 4-6 respectively
8 (SS - secure strategic) - strategic operation management
9 (TS - top-secret) - secure faction management
17 (EO - eyes-only) - this security level assumed that communication subject must not be copy to another media and agents, even them also reached Level 17.