“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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The CIA and the End of the Cold War

The CIA and the End of the Cold War

As CIA station chief in Pakistan, Nigeria, Sudan, and Germany in the 1980s and early ‘90s, Milt Bearden observed—and influenced—the end of the Cold War from a unique vantage point. Today, he talks with Peter about U.S. support of Afghani mujahideen against the Soviet invaders, intelligence community reforms, and his work as a consultant on spycraft in Hollywood. Learn more about your ad choices. Visit megaphone.fm/adchoices

5 Dec 200828min

Woman in Disguise - Jonna Mendez

Woman in Disguise - Jonna Mendez

Jonna Hiestand Mendez began her CIA career as a secretary and ended it as head of the agency’s Office of Technical Services, overseeing the development of gadgets, disguises, and high-tech devices in support of espionage missions. Today, she discusses with Peter some of the operations she was involved in as well as opportunities for women in the intelligence community. Learn more about your ad choices. Visit megaphone.fm/adchoices

18 Nov 200825min

Intelligence and the Presidential Elections II

Intelligence and the Presidential Elections II

Judge William H. Webster, the only person who directed both the FBI (1978-87) and the CIA (1987-91), taps into his vast expertise to discuss with Peter the guidance he would offer to the next U.S. president.  In addition, he provides insight on the ever-present tension between civil liberties and national security, and issues of intelligence oversight. Learn more about your ad choices. Visit megaphone.fm/adchoices

1 Nov 200826min

Inspecting the CIA

Inspecting the CIA

Peter’s guest today is Frederick Hitz, the CIA’s first inspector general subject to U.S. Senate Confirmation (1990-98) and now a lecturer on intelligence at the University of Virginia. In a wide-ranging discussion, Fred talks about intelligence oversight, leadership issues, and terrorism. He also discusses career options in intelligence for young people. Learn more about your ad choices. Visit megaphone.fm/adchoices

20 Okt 200825min

Intelligence and the Presidential Elections I

Intelligence and the Presidential Elections I

A former station chief in Moscow and head of the CIA’s Soviet/East Europe division, Burton Gerber now lectures on intelligence and national security at Georgetown University. Today, Peter interviews him about the post 9/11 reforms of the intelligence community and what guidance he would offer to the next occupant of the White House. Learn more about your ad choices. Visit megaphone.fm/adchoices

1 Okt 200825min

The Iranian Hostage Crisis

The Iranian Hostage Crisis

In November 1979, radical Iranian students overran the U.S. embassy in Tehran, capturing most of the embassy staff—except for six diplomats who found refuge with the Canadian embassy. Today, Peter talks with retired CIA officer Tony Mendez who, in an elaborate deception and disguise operation, managed to exfiltrate the six Americans from Tehran before the Iranians were able to track them down. Learn more about your ad choices. Visit megaphone.fm/adchoices

1 Sep 200830min

Intelligence and the Presidency

Intelligence and the Presidency

How is information from the intelligence community (IC) conveyed to the president, and how have different administrations incorporated intelligence in the political decision-making process? John Hedley, former CIA officer and editor of the President’s Daily Brief (PDB), reviews the relationship between the IC and presidents since World War II, in the course revealing fascinating episodes from his personal experience in dealing with several administrations. Learn more about your ad choices. Visit megaphone.fm/adchoices

1 Aug 200825min

Gizmos and Gadgets—the World of Spycraft

Gizmos and Gadgets—the World of Spycraft

Peter interviews Robert Wallace, director of the CIA’s Office of Technical Services (OTS, the department in charge of “gadgetry”) from 1998 to 2002. Bob explains some of his favorite devices, such as the T-100 subminiature camera, and compares OTS’ performance to that of its adversaries. He also reviews the role of OTS in some high-profile spy cases and discusses the capabilities and limitations of technical support in intelligence operations. Learn more about your ad choices. Visit megaphone.fm/adchoices

1 Juli 200825min

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