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Steganography, in the broadest sense of the word, is a technique of hiding information "in plain sight" within a larger message or messaging context. It is hard to detect because the secret message is a very small component of the larger amount, such as a few words hidden in a Web graphic.
In the books of such spy novelists as Ian Fleming, John le Carré and Tom Clancy, characters frequently engage in tradecraft, e.g. making or retrieving items from "dead drops", "dry cleaning", and wiring, using, or sweeping for intelligence gathering devices, such as cameras or microphones hidden in the subjects' quarters, vehicles, clothing, or accessories.
Hidden messages include backwards audio messages, hidden visual messages and symbolic or cryptic codes such as a crossword or cipher. Although there are many legitimate examples of hidden messages created with techniques such as backmasking and steganography, many so-called hidden messages are merely fanciful imaginings or apophany.
Hidden messages distributed, according to a certain rule or key, as smaller parts (e.g. words or letters) among other words of a less suspicious cover text. This particular form of steganography is called a null cipher. Messages written in Morse code on yarn and then knitted into a piece of clothing worn by a courier. [1]
We come in contact with it all the time, but the markings on the one-dollar bill remain shrouded in mystery. Until now. 1. The Creature. In the upper-right corner of the bill, above the left of ...
The Second Continental Congress created a Secret Committee on September 18, 1775. The committee was not, however, a true intelligence agency, since the Committee of Secret Correspondence with which it often worked was mainly concerned with obtaining military supplies in secret and distributing them, and selling gunpowder to privateers chartered by the Congress.
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In a touching Secret Santa exchange captured on TikTok, Mary Kate gifts Giuliana a personalized purse with a special message from her late mother