0-9 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
1. [A] Telecommunications or automated information system signal that would divulge classified information if recovered and analyzed. [NIS] 2. In cryptographic systems, a signal containing classified information that has NOT been encrypted.