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Study of analyzing information systems in order to discover their hidden aspects
for breaking codes and ciphers are much older. David Kahn notes in The Codebreakers that Arab scholars were the first people to systematically document cryptanalytic
Cryptanalysis
Topics referred to by the same term
Look up codebreaker in Wiktionary, the free dictionary. A codebreaker is a person who performs cryptanalysis. Codebreaker or Code breaker may also refer
Codebreaker_(disambiguation)
Book by David Kahn
The Codebreakers – The Story of Secret Writing (ISBN 0-684-83130-9) is a book by David Kahn, published in 1967, comprehensively chronicling the history
The_Codebreakers
Video game cheat device
development team and proceeded with future versions of CodeBreaker. Their original site was www.codebreaker.com, but Codetwink bought it and had a new site.
Code_Breaker
WWII code-breaking site
importantly the German Enigma and Lorenz ciphers. The GC&CS team of codebreakers included John Tiltman, Dilwyn Knox, Alan Turing, Margaret Rock, Mavis
Bletchley_Park
2011 television film
Codebreaker, also known as Britain's Greatest Codebreaker, is a 2011 television docudrama aired on Channel 4 about the life of Alan Turing. The film had
Codebreaker_(film)
Testery (not a codebreaker) Peter Benenson: codebreaker John Christie: codebreaker Tom Colvill: general manager Peter Edgerley: codebreaker Peter Ericsson:
Testery
English computer scientist (1912–1954)
breaking of German ciphers at Bletchley Park. The historian and wartime codebreaker Asa Briggs has said, "You needed exceptional talent, you needed genius
Alan_Turing
1978 video game
Codebreaker is a puzzle video game released in 1978 by Atari, Inc. for the Atari VCS (later renamed the Atari 2600). It was in the first wave of Atari
Codebreaker_(video_game)
British World War II code breaker
Patricia Davies (née Owtram; born 19 June 1923) is an English former codebreaker who served as a special duties linguist in the Women’s Royal Naval Service
Patricia_Davies_(codebreaker)
Code-breaking game
covered by the shield, visible to the codemaker but not to the codebreaker. The codebreaker tries to deduce the pattern, in both order and color, within
Mastermind_(board_game)
Cipher machines used by the German Army during World War II
Hilton: codebreaker and mathematician Peter Benenson: codebreaker Peter Edgerley: codebreaker John Christie: codebreaker John Thompson: codebreaker Roy Jenkins:
Lorenz_cipher
World War I" (PDF). National Security Agency. Kahn, David (1967). The Codebreakers. Scribner. Friedman, William (1977). Solving German Codes in World War
World_War_I_cryptography
WWE livestreaming event and television special
Angels' dive with a spear. Hill then dove, but Angels countered with a Codebreaker for a near-fall. As both men battled on the top turnbuckle, Hill executed
NXT The Great American Bash (2026)
NXT_The_Great_American_Bash_(2026)
Michael Grant, and later popularized by Chris Jericho, who named it the Codebreaker. It would also be used by Asuka, James Storm and Carmelo Hayes as signature
Professional_wrestling_throws
Monument in Cardiff Bay, Wales
The Codebreakers Statue (Welsh: Cerflun Torwyr Cod) is a group statue of the Welsh rugby players Billy Boston, Clive Sullivan, and Gus Risman in Cardiff
Codebreakers_Statue
British actor (born 1974)
in The Man Who Crossed Hitler, and Alan Turing in Britain's Greatest Codebreaker. Later that year Stoppard starred in British independent feature film
Ed_Stoppard
English cryptanalyst and mathematician (1906–1985)
entitled Bletchley Park: Code-breaking's Forgotten Genius and as The Codebreaker Who Hacked Hitler when broadcast on the Smithsonian Channel in the US
Gordon_Welchman
British historian and codebreaker (1918–2011)
2011) was a British science historian and World War II codebreaker at Bletchley Park. As a codebreaker concerned with Cryptanalysis of the Enigma, Herivel
John_Herivel
American historian and writer (1930–2024)
cryptography and military intelligence. Kahn's first published book, The Codebreakers – The Story of Secret Writing (1967), has been widely considered to be
David_Kahn_(writer)
English cryptographer (1884–1943)
classics scholar and papyrologist at King's College, Cambridge and a codebreaker. As a member of the Room 40 codebreaking unit he helped decrypt the Zimmermann
Dilly_Knox
American actor and filmmaker (born 1971)
Lego Ninjago Movie Lord Garmadon Voice Star Wars: The Last Jedi Master Codebreaker Cameo 2018 Mute Duck Teddington The Spy Who Dumped Me Drew Thayer On
Justin_Theroux
Programmable machine that processes data
Retrieved 14 October 2018. Bearne, Suzanne (24 July 2018). "Meet the female codebreakers of Bletchley Park". The Guardian. Archived from the original on 7 February
Computer
Scottish interceptor for Bletchley Park
12 July 2010(2010-07-12) (aged 87) Dalgety Bay, Scotland Occupation codebreaker Years active 1943–1947 Employer Foreign Office Organization Government
Mary_Adams_(codebreaker)
Biography by Andrew Hodges
Turing: The Enigma (1983) is a biography of the British mathematician, codebreaker, and early computer scientist, Alan Turing (1912–1954) by Andrew Hodges
Alan_Turing:_The_Enigma
Allied codename for Nazi German teleprinter stream ciphers
Testery Peter Benenson — codebreaker John Christie — codebreaker Tom Colvill — general manager Peter Edgerley — codebreaker Peter Ericsson — shift-leader
Fish_(cryptography)
2021 American film
Southwest on March 17, 2021, and was released on October 11, 2023, by Codebreaker Films. The film follows Reality Winner, who leaked a document about Russian
Reality_Winner_(film)
Scottish cryptographer (1881–1961)
Denniston CB CMG CBE RNVR (1 December 1881 – 1 January 1961) was a Scottish codebreaker, deputy head of the Government Code and Cypher School (GC&CS) and hockey
Alastair_Denniston
Banknote
King Charles III on the obverse and computer scientist and World War II codebreaker Alan Turing on the reverse, with his birth date reflecting the release
Bank_of_England_£50_note
Irish librarian and code-breaker
Trinity College Dublin (TCD) was identified by army intelligence as a codebreaker. Colonel Dan Bryan, head of Ireland's G2 intelligence service, made the
Richard_J._Hayes
Iranian banking and financial services corporation
cyberattacks affected the bank in 2025. In early March 2025, the hacker group Codebreakers posted a message on Telegram and other social platforms claiming they
Bank_Sepah
English codebreaker (1921–2013)
1921 – 12 November 2013) was an English codebreaker during World War II and one of the leading female codebreakers at Bletchley Park. Batey later became
Mavis_Batey
1941 Japanese attack on the US
2018. Retrieved August 17, 2018. Toland 1983. Kahn, David (1996). The Codebreakers: The Comprehensive History of Secret Communication from Ancient Times
Attack_on_Pearl_Harbor
Scottish World War II codebreaker and journalist
Rena Stewart (17 February 1923 - 11 November 2023) was a World War II codebreaker at Bletchley Park who later translated Adolf Hitler's will. She became
Rena_Stewart
British code-breaker, singer, and preservationist
Jane Fawcett MBE (née Hughes; 4 March 1921 – 21 May 2016) was a British codebreaker, singer, and heritage preservationist. She recently became known for
Jane_Fawcett
British TV mystery drama series by Guy Burt (2012-2014)
mystery drama series, set in 1952–53, about four women who had worked as codebreakers at Bletchley Park, the principal centre of Allied code-breaking during
The_Bletchley_Circle
Experimental Centre, Delhi; an Oxford don. Michael Arbuthnot Ashcroft (codebreaker) Stanley Armitage[citation needed] Pamela Ascherson, bombe operator (artist)
List of people associated with Bletchley Park
List_of_people_associated_with_Bletchley_Park
English cryptanalyst (1917–1996)
Park codebreakers helped win the war. Boxtree. ISBN 978-0752221892. Burke, Colin B. (21 September 2010). "From the Archives: A Lady Codebreaker Speaks:
Joan_Clarke
English cricketer, educator, and codebreaker
5 February 1998) was an English first-class cricketer, educator, and codebreaker. Born in the Falkland Islands, he moved to England with his family at
Denis_Oswald_(codebreaker)
English synthpop band
Public Enemy's 1990 album Fear of a Black Planet. Their 2003 release Codebreaker t133 fared only slightly better with synthpop adherents than preceding
Red_Flag_(band)
British codebreaker
Nigel de Grey CMG OBE (27 March 1886 – 25 May 1951) was a British codebreaker. Son of the rector of Copdock, Suffolk, and grandson of the 5th Lord Walsingham
Nigel_de_Grey
British businessman and wartime codebreaker (1920–2014)
Roberts MBE (18 November 1920 – 25 March 2014) was a British wartime codebreaker and businessman. During the Second World War, Roberts worked at the Government
Jerry_Roberts
English writer and philologist (1892–1973)
Gandalf". In the run-up to the Second World War Tolkien was earmarked as a codebreaker. In January 1939 he was asked to serve in the cryptographic department
J._R._R._Tolkien
Puerto Rican actor (born 1967)
films from 2013 to 2018 in the Marvel Cinematic Universe, and DJ the Codebreaker in Star Wars: The Last Jedi (2017). He has also worked with Wes Anderson
Benicio_del_Toro
English codebreaker (1919–2010)
Keith Batey (4 July 1919 – 28 August 2010) was a codebreaker who, with his wife, Mavis Batey (5 May 1921 – 12 November 2013), worked on the German Enigma
Keith_Batey
British codebreaker and translator
Arthur Richard Valentine Cooper (1916–1988) was a British codebreaker, who became a translator of Chinese literature after retirement. He is best remembered
Arthur_Cooper_(translator)
2026 TNA Wrestling pay-per-view and livestreaming event
Heather, which caused M to get hit instead. Allie then hit Heather with a Codebreaker, and then Rosemary followed with a reverse DDT to win the title. The
Slammiversary_(2026)
German cipher machine during World War II
This was a severe cryptological flaw that was subsequently exploited by codebreakers. In Model 'C', the reflector could be inserted in one of two different
Enigma_machine
American cryptanalyst and author (1892–1980)
Kahn, David (1967). The Codebreakers: The Story of Secret Writing. New York: Macmillan Publishing Co. Inc. "Pioneering Codebreaker Elizebeth Friedman Honored
Elizebeth_Smith_Friedman
British-Canadian codebreaker and mathematician (1917–2002)
celebrated Tutte's work with an exhibition Bill Tutte: Mathematician + Codebreaker from May 2017 to 2019, preceded on 14 May 2017 by lectures about his
W._T._Tutte
Serial killer in California in the 1960s
August 22, 2023. Goffard, Christopher (December 23, 2025). "An Amateur Codebreaker May Have Just Solved the Black Dahlia and Zodiac Killings". Los Angeles
Zodiac_Killer
British mathematician and codebreaker (1913–2009)
1913 – 2 October 2009) was a British mathematician and World War II codebreaker. Wylie was born in Oxford, England. The fourth son of Sir Francis Wylie
Shaun_Wylie
2021 film by Jeff Wamester
After that battle is over, the JSA's next mission involves saving a codebreaker from a Nazi fortress. He can presumably decode a message Trevor stole
Justice_Society:_World_War_II
Ciphers used by the Imperial Japanese Navy in World War II
naval installations. These were comparatively easily broken by British codebreakers in Singapore and are believed to have been the source of early indications
Japanese_naval_codes
American linguist and codebreaker
Gardner (October 20, 1912 – August 9, 2002) was an American linguist and codebreaker. Gardner worked in counter-intelligence, decoding Soviet intelligence
Meredith_Gardner
Fundamental tool in cryptography
variable shifting, natural letter frequencies are hidden. However, if a codebreaker is aware that this method has been used, it becomes easy to break. The
Tabula_recta
Joan Louisa McLean (October 1919 – 17 January 2018) volunteered and served in the Women's Royal Naval Service (Wrens), and played a pivotal role in codebreaking
Joan_McLean
British prince (1902–1942)
Fenton-Stevens. Set at Bletchley Park, the programme depicts a team of codebreakers instructed to conceal the nature of their work during an impromptu royal
Prince_George,_Duke_of_Kent
ability to do crosswords was explored in the interview of Jean Argles a codebreaker employed outside Bletchley Park. In 1942 the Daily Telegraph hosted a
Women_in_Bletchley_Park
number of books, including the UK Number 1 bestseller Station X: The Codebreakers of Bletchley Park (1998). This was subsequently televised and updated
Michael Smith (newspaper reporter)
Michael_Smith_(newspaper_reporter)
English mystery and detective writer (1890–1976)
The agency's fears were allayed when Christie told her friend, the codebreaker Dilly Knox, "I was stuck there on my way by train from Oxford to London
Agatha_Christie
British code-breakers during WW1
were a group of seventeen British women who worked on the front line as codebreakers in France during World War One. After the war, two would go on to work
Hush_WAACs
British chess player
January 1995) was a British chess player, chess author, and wartime codebreaker. He was three times British chess champion, in 1947, 1949, and 1955 and
Harry_Golombek
1941 memorandum from Bletchley Park to Winston Churchill
Alexander; he was "nonplussed" by the apparent chaos with two senior codebreakers both sitting on the floor and studying papers. John Herivel was introduced
Action_This_Day_(memo)
WWE pay-per-view event
After the match, Jericho hit Axel with his finishing maneuver, the Codebreaker. On the April 8 episode of Raw, Alberto Del Rio defeated Jack Swagger
Payback_(2013)
Codebreaker at Bletchley Park (1923–2020)
Joslin (née Glover, 11 March 1923 – 8 February 2020) was an English codebreaker at Bletchley Park during World War II. Joslin was born as Joan Glover
Joan_Joslin
2017 British law pardoning formerly illegal sex acts
homosexual acts. The provision is named after Alan Turing, the World War II codebreaker and computing pioneer, who was convicted of gross indecency in 1952.
Alan_Turing_law
English mathematician (1897–1984)
1984), generally known as Max Newman, was a British mathematician and codebreaker. His work in World War II led to the construction of Colossus, the world's
Max_Newman
Film directed by Michael Apted
adapted from the 1995 novel Enigma by Robert Harris, about the Enigma codebreakers of Bletchley Park in the Second World War. Although the story is highly
Enigma_(2001_film)
British intelligence officer and Soviet spy (1913–1995)
Mihailović or Tito: How the Codebreakers Helped Churchill Choose". In Erskine, Ralph; Smith, Michael (eds.). The Bletchley Park Codebreakers. Biteback Publishing
John_Cairncross
Irish cryptanalyst (1891–1962)
Major Malcolm Vivian Hay and Alastair Denniston named Anderson as a codebreaker they wanted to keep in the newly formed Government Code and Cipher School
Emily_Anderson
English actor (born 1959)
Underground 2006–2007 Real Crime Series 5–6 2011 Britain's Greatest Codebreaker 2012 9/11: The Miracle Survivor Television film 2013 Wildest Latin America
Paul_McGann
American male journalist
Gannon is the author of Stealing Secrets, Telling Lies: How Spies and Codebreakers Helped Shape the Twentieth century (2001). The book discusses key episodes
James_Gannon_(author)
Overview of Game Boy accessories
This is a list of video game accessories that have been released for the Game Boy handheld console and its successors. Accessories add functionality that
List_of_Game_Boy_accessories
President of the United States from 1933 to 1945
533–39. Sainsbury 1994, p. 184. Maffeo, Steven E. (2015). U.S. Navy Codebreakers, Linguists, and Intelligence Officers against Japan, 1910–1941: A Biographical
Franklin_D._Roosevelt
English NAAFI assistant (1926–1945)
the three to survive. These documents greatly assisted Bletchley Park codebreakers in cracking the German Enigma code. After this heroic deed, it was revealed
Tommy_Brown_(NAAFI_assistant)
Scottish university administrator and Bletchley Park veteran (1922–2020)
London where GCHQ was being formed. The new unit consisted of experienced codebreakers like herself who had worked in the United Kingdom, and others returning
Cecily_Giles
British cryptoanalyst (1903–1983)
book}}: ISBN / Date incompatibility (help) Howard, Kerry (2016). Dear Codebreaker: The Letters of Margaret Rock. Redditch, Worcestershire: BookTower Publishing
Margaret_Rock
1803–1815 series of wars led by Napoleon
Cipher used by the French. However, thanks to the hard work of British codebreakers like George Scovell, the British were able to crack French ciphers and
Napoleonic_Wars
American spies for the Soviet Union (d. 1953)
a contemporary hand-written memo by Meredith Gardner, a linguist and codebreaker at what later became the NSA, based on Russian decrypts. It claimed that
Julius_and_Ethel_Rosenberg
Childhood friend of Alan Turing (1911–1930)
ISBN 978-1-4875-6900-6. Hodges 2012, p. 66. "Alan Turing school report in Cambridge codebreaker exhibition". BBC News. 23 October 2017. Retrieved 11 April 2026. Hodges
Christopher_Morcom
English code breaker (1923–2025)
WWII codebreaker Betty Webb dies aged 101". Bromsgrove Advertiser. 1 April 2025. Retrieved 1 April 2025. "Betty Webb: Thousands wish codebreaker, 100
Betty_Webb_(code_breaker)
American Navy cryptanalyst (1921–2025)
during World War II, a WAVE and member of a secret all-women team of codebreakers at the Naval Communications Annex, Washington D.C., now nicknamed the
Julia_Mary_Parsons
College of the University of Kent
college. It was named after Alan Turing, a British mathematician and codebreaker, known for his foundational contributions to computer science and his
Turing_College,_Kent
British codebreaker
British codebreaker
Dorothy_Du_Boisson
British codebreaker and architectural model maker (1926–2013)
Clare Hudson (née Latham; 31 July 1926 – 7 July 2013) was a British codebreaker and architectural model maker. Rosalind was born at Wirral, Cheshire
Rosalind_Hudson
perhaps twenty others. Meredith Gardner (1912–2002), American linguist and codebreaker. He spoke German, French, Italian, Spanish, Russian, Lithuanian, and
List_of_polyglots
2020s American conspiracy drama television series
bill that repeals sanctions on South America. Jewish Brooklyn-based codebreaker Jonah Heidelbaum witnesses the murder of his grandmother Ruth, being
Hunters_(2020_TV_series)
Rejewski (1905–1980), mathematician, cryptologist, Enigma code machine codebreaker Richard Rothe (1799–1867), Lutheran theologian. Marcin Rożek (1885–1944)
List_of_people_from_Poznań
WWE pay-per-view and livestreaming event
powerbomb on Belair and Bliss from the top turnbuckle. Morgan performed a codebreaker on Perez followed by Bliss performing Twisted Bliss on Perez to eliminate
Elimination_Chamber_(2025)
Royal prerogative of the monarch to grant pardons
Turing under the prerogative of mercy. Turing, an important World War II codebreaker, had been convicted in 1952 of gross indecency for a consensual homosexual
Royal_prerogative_of_mercy
Simple and widely known encryption technique
ISBN 9781532693830. Kahn, David (1967). The Codebreakers. pp. 148–149. ISBN 978-0-684-83130-5. Kahn, David (1967). The Codebreakers. pp. 398–400. ISBN 978-0-684-83130-5
Caesar_cipher
Attack model for cryptanalysis with presumed access to ciphertexts for chosen plaintexts
position their force to win the battle. Also during World War II, Allied codebreakers at Bletchley Park would sometimes ask the Royal Air Force to lay mines
Chosen-plaintext_attack
Czechoslovak-born Canadian journalist and author (1921–2024)
honoured by the British government for her service as a World War II codebreaker for an Ottawa branch of Bletchley Park signals intelligence between 1943
Sonja_Morawetz_Sinclair
the battle, Admiral Cunningham visited Bletchley Park to congratulate codebreaker Dilly Knox and his staff, with a positive impact on morale. Mavis Batey
Cryptanalysis of Italian naval codes
Cryptanalysis_of_Italian_naval_codes
"Stranger in the Mirror" December 28, 1993 (1993-12-28) 2020 392 12 "Codebreakers" January 18, 1994 (1994-01-18) 2101 393 13 "Dinosaurs of the Gobi" January 25
List_of_Nova_episodes
British World War II military deception
Naval Enigma codebooks. With the help of their Polish allies, British codebreakers at Bletchley Park had considerable success in decoding the Enigma-enciphered
Operation_Ruthless
British army sergeant and author (born 1961)
The History of the SAS (2019) Agent 21 Agent 21 (2010) Reloaded (2012) Codebreaker (2013) Deadfall (2014) Under Cover (2015) Endgame (2016) Alpha Force
Chris_Ryan
Name list
hospital administrator Valerija Skrinjar Tvrz (1928–2023), Slovene Partisan codebreaker, journalist, writer and translator Valeria Valente (born 1976), Italian
Valeria_(given_name)
Department of the British Directorate of Military Intelligence
MI4? Erskine, Ralph; Smith, Michael, eds. (2011), The Bletchley Park Codebreakers, Biteback Publishing Ltd, ISBN 978-1-84954-078-0 Updated and extended
MI1
CODEBREAKER
CODEBREAKER
CODEBREAKER
CODEBREAKER
Male
English
 Variant spelling of English Eric, ERIK means "ever-ruler." Compare with another form of Erik.
Boy/Male
American, Basque, British, Christian, Danish, Dutch, English, Finnish, French, German, Greek, Hindu, Indian, Irish, Jamaican, Latin, Netherlands, Polish, Portuguese, Shakespearean, Swedish, Swiss, Tamil, Ukrainian
Helper and Defender of Mankind; Protector of Mankind; Warrior; Defender of Men
Girl/Female
Afghan, Danish, Hindu, Indian
Achievement; Home Sick; Old; New
Girl/Female
Sikh
One absorbed in peace and bliss
Girl/Female
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sindhi, Telugu
One with Lot of Scent; Bud of Champa Flower
Boy/Male
Australian
From the Friend's Town; Wine's Town; From Wine's Farm
Boy/Male
Hindu, Indian, Marathi
Part of Lord Vishnu; A Part of Sun
Boy/Male
Tamil
Mountain
Surname or Lastname
English
English : variant of Alsbury.
Boy/Male
Biblical
Trembling.
CODEBREAKER
CODEBREAKER
CODEBREAKER
CODEBREAKER
CODEBREAKER