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The web page lists the code names used by the U.S. Secret Service for presidents, first ladies, and other prominent persons and locations. Donald Trump and his family members have the code names Mogul, Muse, Mountaineer, Marvel, Marksman, and Mechanic.
Tap code, also called knock code, is a simple method of communicating letters using a 5x5 grid of letters. It is often used by prisoners to send messages to each other, and has a history dating back to ancient Greece.
Learn about the history, variations and insecurity of the pigpen cipher, a geometric simple substitution cipher that uses symbols in a grid. The cipher is also known as the masonic cipher, Rosicrucian cipher, Napoleon cipher and tic-tac-toe cipher.
The Secret Service uses code names for presidents, first ladies and other prominent people and locations. Originally, the code names were used for security purposes when sensitive electronic ...
ECHELON is a network of signals intelligence agencies of Australia, Canada, New Zealand, the UK and the US, created in the 1960s to monitor the Soviet Union and its allies. The program has been exposed by whistleblowers, journalists and activists, and has faced legal challenges and controversies.
A secret decoder ring is a device that allows one to decode or encrypt messages using a simple substitution cipher. Learn about the history, types, and examples of secret decoder rings, and how they are used in media and culture.
A code name is a secret word or phrase used to refer to something or someone. Learn about the origins and uses of code names in military, espionage, business and other contexts, with examples from World War I, World War II and beyond.
Rainbow codes, or at least names that look like them without being official, have occasionally been used for some modern systems; current examples include the Orange Reaper electronic support measures system and the Blue Vixen radar [4] —the latter most likely so named because it was a replacement for the Blue Fox radar.