The name given to the member of Battle Dress secret ops unit "Kerberos", specifically established to counter the repeated enemies' infiltration and sabotage. Although it's structurally belongs to the security forces, only a handful of person know of its existence.
As implied by their name, they are specialized in stealth combat.
Each one of them possessed an "Artefact (Mechanical Weapon With a Will)" filled with the essence of Killer Machine technology to eliminate their target without being known by anyone. Furthermore, by using the "Photon Device" equipped, they can utilize "Lightning Shadow" to digitize their bodies and travel incognito inside the cyberspace just like the Blue World's system managers—Administrator.
Polaris, who became the head of Security Force on behalf of Vega, also handles several other secret organizations.