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A canary trap is a method for exposing an information leak by giving different versions of a sensitive document to each of several suspects and seeing which version gets leaked. It could be one false statement, to see whether sensitive information gets out to other people as well. Special attention is paid to the quality of the prose of the unique language, in the hopes that the suspect will repeat it verbatim in the leak, thereby identifying the version of the document.
The term was coined by Tom Clancy in his novel Patriot Games , [1] [ non-primary source needed ] although Clancy did not invent the technique. The actual method (usually referred to as a barium meal test in espionage circles) has been used by intelligence agencies for many years. The fictional character Jack Ryan describes the technique he devised for identifying the sources of leaked classified documents:
Each summary paragraph has six different versions, and the mixture of those paragraphs is unique to each numbered copy of the paper. There are over a thousand possible permutations, but only ninety-six numbered copies of the actual document. The reason the summary paragraphs are so lurid is to entice a reporter to quote them verbatim in the public media. If he quotes something from two or three of those paragraphs, we know which copy he saw and, therefore, who leaked it.
A refinement of this technique uses a thesaurus program to shuffle through synonyms, thus making every copy of the document unique. [2]
Following the troubled production of Star Trek: The Motion Picture in the late 1970s, Paramount Pictures effectively replaced Gene Roddenberry as producer of further movies in the franchise with Harve Bennett. Roddenberry was retained as an "executive consultant", due to the high regard the series' fans held him in; while he had little real authority he was still kept involved in the creative process. The fans often complained about particular plot developments proposed for the films, such as the death of Spock in Star Trek II , that Roddenberry had opposed. So, before any drafts of the screenplay for Star Trek III: The Search for Spock were circulated, Bennett arranged for each individual copy to have subtle clues distinguishing it from the others. Shortly after Roddenberry opposed the destruction of the Enterprise at the climax of that film, fans began to complain to Paramount and Bennett. He found that a leaked copy of the script was the one given to Roddenberry, but was unable to do anything about it. [3]
After a series of leaks at Tesla Motors in 2008, CEO Elon Musk reportedly sent slightly different versions of an e-mail to each employee in an attempt to reveal potential leakers. The e-mail was disguised as a request to employees to sign a new non-disclosure agreement. The plan was undermined when the company's general counsel forwarded his own unique version of the e-mail with the attached agreement. As a result, Musk's scheme was realized by employees who now had a safe copy to leak. [4]
In October 2019, British celebrity Coleen Rooney used the technique to identify who was leaking information from her private Instagram stories to tabloid newspaper The Sun by posting fake stories which were blocked to all but one account. When these details appeared in the press, she publicly identified the leaks as coming from the account of Rebekah Vardy, wife of footballer Jamie Vardy. The subsequent libel trial became known as the Wagatha Christie case. [5] [6]
In December 2020, Andrew Lewer, a Member of Parliament and Parliamentary Private Secretary in the UK government, was fired after a canary trap in the form of a letter reminding staff not to leak was published on the website Guido Fawkes . [7]
According to the book Spycatcher [8] by Peter Wright (published in 1987), the technique is standard practice that has been used by MI5 (and other intelligence agencies) for many years, under the name "barium meal test". A barium meal test is more sophisticated than a canary trap because it is flexible and may take many different forms. However, the basic premise is to reveal a supposed secret to a suspected enemy (but nobody else) then monitor whether there is evidence of the fake information being utilised by the other side. For example, a suspected double agent could be offered some tempting "bait": e.g., be told that important information was stored at a dead drop site. The fake dead drop site could then be periodically checked for signs of disturbance. If the site showed signs of being disturbed (for instance, in order to copy microfilm stored there), then this would confirm that the suspected enemy really was an enemy, i.e., a double agent.
The technique of embedding significant information in a hidden form in a medium has been used in many ways, which are usually classified according to intent:
Eugene Wesley Roddenberry Sr. was an American television screenwriter and producer who created the science fiction series and fictional universe Star Trek. Born in El Paso, Texas, Roddenberry grew up in Los Angeles, where his father was a police officer. Roddenberry flew 89 combat missions in the Army Air Forces during World War II and worked as a commercial pilot after the war. Later, he joined the Los Angeles Police Department and began to write for television.
Star Trek: The Animated Series (TAS) is an American animated science fiction television series created by Gene Roddenberry. It originally aired simply under the title Star Trek, subtitled Created by Gene Roddenberry, on Saturday mornings from September 8, 1973 to October 12, 1974 on NBC, spanning 22 episodes over two seasons. The second series in the Star Trek franchise, it features mostly the same characters as Star Trek: The Original Series. Set in the 23rd century, the series follows the further adventures of the Starship USS Enterprise as it explores the galaxy.
Star Trek: Phase II was the initial working title for what officially became titled Star Trek II, an unproduced American science fiction television series created by Gene Roddenberry as a sequel to the original Star Trek, which had run from 1966 to 1969. The plans for the series were first developed after several failed attempts to create a feature film based on the property, coupled with plans for a Paramount Television Service (PTS) as a fourth broadcast television network in the United States.
Star Trek VI: The Undiscovered Country is a 1991 American science fiction film directed by Nicholas Meyer, who also directed the second Star Trek film, The Wrath of Khan. It is the sixth feature film based on the 1966–1969 Star Trek television series. Taking place after the events of Star Trek V: The Final Frontier, it is the final film featuring the entire main cast of the original television series. The destruction of the Klingon moon Praxis leads the Klingon Empire to pursue peace with their longtime adversary, the Federation; the crew of the Federation starship USS Enterprise must race against unseen conspirators with a militaristic agenda.
Star Trek: The Motion Picture is a 1979 American science fiction film directed by Robert Wise. The Motion Picture is based on and stars the cast of the 1966–1969 television series Star Trek created by Gene Roddenberry, who serves as producer. In the film, set in the 2270s, a mysterious and powerful alien cloud known as V'Ger approaches Earth, destroying everything in its path. Admiral James T. Kirk assumes command of the recently refitted Starship Enterprise to lead it on a mission to determine V'Ger's origins and save the planet.
"The City on the Edge of Forever" is the twenty-eighth and penultimate episode of the first season of the American science fiction television series Star Trek. It was written by Harlan Ellison; contributors to and/or editors of the script included Steven W. Carabatsos, D. C. Fontana and Gene L. Coon. Gene Roddenberry made the final re-write. The episode was directed by Joseph Pevney and first aired on NBC on April 6, 1967.
"The Cage" is the first pilot episode of the American television series Star Trek. It was completed on January 22, 1965. The episode was written by Gene Roddenberry and directed by Robert Butler. It was rejected by NBC in February 1965, and the network ordered another pilot episode, which became "Where No Man Has Gone Before". Much of the original footage from "The Cage" was later incorporated into the season 1 two-part episode "The Menagerie" (1966); however, "The Cage" was first released to the public on VHS in 1986, with a special introduction by Gene Roddenberry, as a hybrid of the color footage that was used in "The Menagerie" and black and white footage which was not used in "The Menagerie". It was not broadcast on television in its complete all-color form until 1988. The black and white version and all-color version were also released in various standard-definition media including LaserDisc, VHS, and DVD formats.
"Where No Man Has Gone Before" is the third episode of the first season of the American science-fiction television series Star Trek. Written by Samuel A. Peeples and directed by James Goldstone, it first aired on September 22, 1966.
A lower gastrointestinal series is a medical procedure used to examine and diagnose problems with the human colon of the large intestine. Radiographs are taken while barium sulfate, a radiocontrast agent, fills the colon via an enema through the rectum.
Janice Rand is a fictional character in the American science fiction television series Star Trek: The Original Series during its first season, as well as three of the Star Trek films. She is the Captain's yeoman on board the USS Enterprise (NCC-1701), and first appeared in the episode "The Man Trap". She had significant roles in the episodes "The Enemy Within", where she fights off an evil version of Captain James T. Kirk; "Charlie X" where a young man with god-like powers falls in love with her; and "Miri" where she is infected with a deadly disease while on an away mission and is kidnapped by jealous children.
"The Infinite Vulcan" is the seventh episode of the first season of the American animated science fiction television series Star Trek: The Animated Series. It first aired on NBC on October 20, 1973, and was written by Original Series cast member Walter Koenig. It was the actor's only involvement in the series, as he had not been hired to voice Pavel Chekov in the animated version due to budgetary limitations. With "The Infinite Vulcan", Koenig became the first member of the Star Trek cast to write an episode for the franchise. As with the rest of the first season, the episode was directed by Hal Sutherland.
"The Man Trap" is the first episode of season one of the American science fiction television series Star Trek. Written by George Clayton Johnson and directed by Marc Daniels, it featured design work by Wah Chang and first aired in the United States on September 8, 1966.
Traitor tracing schemes help trace the source of leaks when secret or proprietary data is sold to many customers. In a traitor tracing scheme, each customer is given a different personal decryption key. (Traitor tracing schemes are often combined with conditional access systems so that, once the traitor tracing algorithm identifies a personal decryption key associated with the leak, the content distributor can revoke that personal decryption key, allowing honest customers to continue to watch pay television while the traitor and all the unauthorized users using the traitor's personal decryption key are cut off.)
Tradecraft, within the intelligence community, refers to the techniques, methods, and technologies used in modern espionage (spying) and generally as part of the activity of intelligence assessment. This includes general topics or techniques, or the specific techniques of a nation or organization.
Video fingerprinting or video hashing are a class of dimension reduction techniques in which a system identifies, extracts and then summarizes characteristic components of a video as a unique or a set of multiple perceptual hashes or fingerprints, enabling that video to be uniquely identified. This technology has proven to be effective at searching and comparing video files.
The second season of the American science fiction television series Star Trek: The Next Generation commenced airing in broadcast syndication in the United States on November 21, 1988, and concluded on July 17, 1989, after airing 22 episodes. Set in the 24th century, the series follows the adventures of the crew of the Starfleet starship Enterprise-D. Season two featured changes to the main cast, following the departure of Gates McFadden. Diana Muldaur was cast as Dr. Katherine Pulaski for a single season before the return of McFadden in season three. Academy Award winner Whoopi Goldberg also joined the cast after pursuing a role from the producers.
Lincoln Enterprises, formerly Star Trek Enterprises, was a mail-order company set up by Bjo Trimble and Gene Roddenberry to sell merchandise related to the American science fiction television series Star Trek. It was known for selling official scripts and film cells directly from Desilu Productions during the run of the series. It later expanded into general Star Trek merchandise under Majel Barrett, and has since been subsumed into Roddenberry.com.
The development of Spock, a fictional character first introduced in the American science fiction television series Star Trek, began prior to the start of the series. The first known mention of Spock was in a discussion between Gene Roddenberry and Gary Lockwood, where the latter suggested Leonard Nimoy for the role. Roddenberry agreed with the suggestion, and Nimoy became the first choice actor for the part. However, Roddenberry was required to audition other actors for the role. It was offered to both DeForest Kelley and Martin Landau before Nimoy. Nimoy disliked the prosthetic ears he was required to wear, and there were concerns from the studio that they made him appear satanic. Roddenberry fought to keep the character in the second pilot, "Where No Man Has Gone Before" after the rest of the main cast was dropped from the initial pilot, "The Cage".
Wagatha Christie is a popular name given to a dispute between the British media personalities Rebekah Vardy and Coleen Rooney, which culminated in a 2022 libel case in the English High Court, Vardy v Rooney.
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