Ultra Unaccessible Umbra

As far as "Umbra" goes, there was a Top Secret Umbra classification used by the Army Security Agency. It applied to all intercepted communications. ASA worked for NSA. How do I know this? Don't ask. I'd have to.... well anyway, I guess the codeword is declassified because I saw it pasted all over a document in a Tom Clancy movie.

Top Secret Umbra is, or at least was, used in SIGINT for signal intercepts. The NSA is in charge of this area of intelligence gathering but the Army Security Agency (now under a new name), Naval Security Group, and Air Force Security Squadron, operate intercept posts throughout the world. It may be used for other purposes but I know it is/was used for this purpose. Everything that gets intercepted gets stamped UMBRA.

reply to post by skeptical2012

Does anybody have a clue what this codeword means?

Nope, not one, but I did find this very disturbing video.