“I Helped Solve the Final Zodiac Killer Cipher” – with David Oranchak
SpyCast2 Apr 2024

“I Helped Solve the Final Zodiac Killer Cipher” – with David Oranchak

Summary David Oranchak (X, LinkedIn) joins Andrew (X; LinkedIn) to discuss his work helping to solve the 340 Zodiac cipher. Dave is a software developer and avid puzzle solver. What You’ll Learn Intelligence The difference between codes and ciphers The cryptological methods used by the Zodiac killer The history of cryptography and its importance to intelligence How Dave and his team cracked the 340 Cipher Reflections Persistence and dedication Average citizens as avid participants And much, much more … Quotes of the Week “It felt like we had gotten a brand new letter from the Zodiac Killer. You know, the case had been dormant for so long … We started to see the message coming through, it was like he was back to life so to speak, he was talking to us again after so many years of not saying anything. So that was kind of eerie to kind of hear the voice of a serial killer.” – David Oranchak. Resources SURFACE SKIM *SpyCasts* My Father the Navajo Code-Talker with Laura Tohe (2023) Venice’s Secret Service with Ioanna Iordanou (2023) El Chapo, the Sinaloa Cartel & Intelligence with Trial Reporter Noah Hurowitz (2022) CYBER AUGUST: “So, You Want to Be a Codebreaker?” with Elonka Dunin and Klaus Schmeh (2021) *Beginner Resources* A brief history of cryptography: Sending secret messages throughout time, J. Schneider, IBM (2024) [Short article] What is the Difference Between a Code and a Cipher? Mysterious Writings (2018) [Short Article] Infamous Killers: The Zodiac Killer, A&E, YouTube (2017) [5 min. video] DEEPER DIVE Books Zodiac: The Shocking True Story of the Hunt for the Nation's Most Elusive Serial Killer, R. Graysmith (Berkley, 2007) The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography, S. Singh (Anchor, 2000) The Codebreakers: The Comprehensive History of Secret Communication from Ancient Times to the Internet, D. Kahn (Scribner, 1996) Primary Sources The Zodiac Killer FBI Case File (1969) San Francisco Zodiac Letter (1969) San Francisco Suspect Sketches (1969) Zodiac’s 408 Cipher (1969) Zodiac’s 340 Cipher (1969) The Beale Papers (1885) The Dorabella Cipher (1897) Voynich Manuscript (ca. 1401-1599) *Wildcard Resource* If you’re an amateur codebreaker and you feel inspired by this episode, try your hand at cryptanalysis with this FBI-created dot code. Erin tried, but could not begin to crack it – She’ll stick to podcasting. Learn more about your ad choices. Visit megaphone.fm/adchoices

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Inside the National Security Agency

Inside the National Security Agency

The National Security Agency (NSA), America’s premier cryptanalytic organization, is the largest and most secretive member of the American intelligence community. Discussing NSA’s mission, capabilities, and past exploits, former NSA Chief of Information Policy Mike Levin reveals some of the mysterious agency’s secrets. Learn more about your ad choices. Visit megaphone.fm/adchoices

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U.S. Military Intelligence—Past and Present

A West Point graduate, Brian G. Shellum was U.S. Army attaché in Germany, served in the armed forces during the first Gulf War, and worked for over a decade as historian for the Defense Intelligence Agency (DIA). Today, Brian discusses the history and purpose of American military intelligence, describing the DIA and the role of the military attachés posted abroad. Learn more about your ad choices. Visit megaphone.fm/adchoices

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U.S. Naval Intelligence in World War II

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Intelligence and Conspiracy Theories II

During the Cold War, Soviet intelligence used disinformation to malign the United States, for example, by spreading the rumor that AIDS resulted from U.S. Army bacteriological warfare experiments. U.S. State Department Counter-Misinformation officer Todd Leventhal discusses some of the most notorious Soviet-inspired conspiracy theories and explains how the United States sought to counter them. Learn more about your ad choices. Visit megaphone.fm/adchoices

1 Apr 200930min

Intelligence and Conspiracy Theories I

Intelligence and Conspiracy Theories I

What makes conspiracy theories so appealing, and why have they become so prevalent in this day and age? Do some of them contain a grain of truth? And who stands to gain from spreading these ideas? To answer these questions, Peter interviews Professor Robert Alan Goldberg, author of Enemies Within, and a leading authority on conspiracy thinking. Learn more about your ad choices. Visit megaphone.fm/adchoices

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Intelligence Lessons from Vietnam

Intelligence Lessons from Vietnam

Working for the Saigon Military Mission and the CIA, Rufus Phillips spent ten years in South East Asia during the Vietnam War. Drawing on this experience, Rufus talks about psychological warfare and counter-insurgency tactics in Vietnam, and lessons for America’s present engagement in Iraq and Afghanistan. Learn more about your ad choices. Visit megaphone.fm/adchoices

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Robert De Niro on Intelligence

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Today, Peter chats with actor and film producer Robert De Niro. De Niro talks about his long-standing interest in the world of intelligence and discusses his latest espionage movie The Good Shepherd about the early history of the CIA. He also provides an insider look at the making of the humorous polygraph scene in Meet the Parents. Learn more about your ad choices. Visit megaphone.fm/adchoices

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U.S. Intelligence in Decline?

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A senior fellow at the Center for International Policy, Melvin A. Goodman served many years as an analyst at the CIA and the State Department’s Bureau of Intelligence and Research. A critical observer of the intelligence community, he elaborates on his thesis about the decline of U.S. intelligence, specifically its militarization, privatization, and deteriorating analysis capacities. Learn more about your ad choices. Visit megaphone.fm/adchoices

2 Jan 200928min

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