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In the 1960's and early 1970's, the infamous Zodiac Killer terrorized the California Bay Area and mesmerized the rest of the country with a haunting string of unsolved murders and violent attacks. With seven confirmed victims, including five brutal fatalities, the Zodiac eluded police for years, taunting them with bizarre ciphers and threatening letters. Authorities challenged the Zodiac to create another of his famous cryptograms and reveal his identity. With his outrageous ego at stake, the killer responded by sending them the 340 Cipher... which was never solved. But now, 47 years later, in his book Zodiac Code: Solved! author Michael D. Sechrest - with the historical advantage of all the killers' enigmatic correspondence, taunting clues, and cryptic lyrics from Gilbert and Sullivan - has finally cracked the 340 Cipher. The Zodiac killer's TRUE IDENTITY is exposed at last in his own confession! Mr. Sechrest, a board certified trial expert, has accomplished what the homicide investigators and code-cracking experts, have set out to do over the last 50 years...solve the Zodiac Killer Code. He is so certain of the solution, he wagers $10,000.00 against all readers.
Robert Graysmith’s New York Times bestselling account of the desperate hunt for a serial killer and his own investigation of California’s unsolved Zodiac murders. A sexual sadist, the Zodiac killer took pleasure in torture and murder. His first victims were a teenage couple, stalked and shot dead in a lovers’ lane. After another slaying, he sent his first mocking note to authorities, promising he would kill more. The official tally of his victims was six. He claimed thirty-seven dead. The real toll may have reached fifty. Robert Graysmith was on staff at the San Francisco Chronicle in 1969 when Zodiac first struck, triggering in the resolute reporter an unrelenting obsession with seeing the hooded killer brought to justice. In this gripping account of Zodiac’s eleven-month reign of terror, Graysmith reveals hundreds of facts previously unreleased, including the complete text of the killer’s letters.
If you liked Dan Brown’s Da Vinci Code—or want to solve similarly baffling cyphers yourself—this is the book for you! A thrilling exploration of history’s most vexing codes and ciphers that uses hands-on exercises to teach you the most popular historical encryption schemes and techniques for breaking them. Solve history’s most hidden secrets alongside expert codebreakers Elonka Dunin and Klaus Schmeh, as they guide you through the world of encrypted texts. With a focus on cracking real-world document encryptions—including some crime-based coded mysteries that remain unsolved—you’ll be introduced to the free computer software that professional cryptographers use, helping you build your skills with state-of-the art tools. You’ll also be inspired by thrilling success stories, like how the first three parts of Kryptos were broken. Each chapter introduces you to a specific cryptanalysis technique, and presents factual examples of text encrypted using that scheme—from modern postcards to 19-century newspaper ads, war-time telegrams, notes smuggled into prisons, and even entire books written in code. Along the way, you’ll work on NSA-developed challenges, detect and break a Caesar cipher, crack an encrypted journal from the movie The Prestige, and much more. You’ll learn: How to crack simple substitution, polyalphabetic, and transposition ciphers How to use free online cryptanalysis software, like CrypTool 2, to aid your analysis How to identify clues and patterns to figure out what encryption scheme is being used How to encrypt your own emails and secret messages Codebreaking is the most up-to-date resource on cryptanalysis published since World War II—essential for modern forensic codebreakers, and designed to help amateurs unlock some of history’s greatest mysteries.
A comprehensive collection of police reports related to the unsolved mystery of the Zodiac Killer unsolved mystery
From the New York Times bestselling author of Black Dahlia Avenger Former LAPD detective Steve Hodel compiles never-before-seen evidence that reveals his father as a serial killer who may have been responsible for some of the most infamous murders of the last century- including the Zodiac killings.
Robert Graysmith reveals the true identity of Zodiac—America's most elusive serial killer. Between December 1968 and October 1969 a hooded serial killer called Zodiac terrorized San Francisco. Claiming responsibility for thirty-seven murders, he manipulated the media with warnings, dares, and bizarre cryptograms that baffled FBI code-breakers. Then as suddenly as the murders began, Zodiac disappeared into the Bay Area fog. After painstaking investigation and more than thirty years of research, Robert Graysmith finally exposes Zodiac’s true identity. With overwhelming evidence he reveals the twisted private life that led to the crimes, and provides startling theories as to why they stopped. America’s greatest unsolved mystery has finally been solved. INCLUDES PHOTOS AND A COMPLETE REPRODUCTION OF ZODIAC’S LETTERS
The New York Times–bestselling author “brings us behind the scenes of the toughest case the NYPD has faced in 20 years” (Dan Mahoney, USA Today–bestselling author). He slipped like a sinister shadow in the night, stalking, then savagely attacking. Most of his unsuspecting targets were shot at close range and one woman was stabbed over one hundred times. After dispatching his victims, police allege he left their bloodstained bodies and crept back to the neatly kept room in his mother’s apartment. The taunting, bizarre letters alleged killer Heriberto Seda sent to the police and the New York Post were full of strange symbols and mysterious references to the Zodiac. For six terror-filled years, the Zodiac killer ruled the night, claiming nine victims in his homicidal rage. One of the biggest manhunts in New York City’s history was unleashed . . . and still the body count rose. Police claim his lethal fury finally exploded one summer afternoon. After shooting his own sister, he held her boyfriend hostage and kept scores of heavily armed police pinned down in a ferocious firefight that finally ended with his surrender. But it was only when an alert detective recognized a symbol drawn on Seda’s confession as similar to the personal signature used by the Zodiac Killer in his letters, that investigators concluded that the madman they had arrested was in fact the notorious Zodiac Killer. Author Kieran Crowley, an award-winning New York Post reporter who covered the case from the first grisly shooting and cracked the psychopath’s secret code, reveals the exclusive inside story and finally solves the biggest remaining mystery of the case.
Cybersecurity experts from across industries and sectors share insights on how to think like scientists to master cybersecurity challenges Humankind’s efforts to explain the origin of the cosmos birthed disciplines such as physics and chemistry. Scientists conceived of the cosmic ‘Big Bang’ as an explosion of particles—everything in the universe centered around core elements and governed by laws of matter and gravity. In the modern era of digital technology, we are experiencing a similar explosion of ones and zeros, an exponentially expanding universe of bits of data centered around the core elements of speed and connectivity. One of the disciplines to emerge from our efforts to make sense of this new universe is the science of cybersecurity. Cybersecurity is as central to the Digital Age as physics and chemistry were to the Scientific Age. The Digital Big Bang explores current and emerging knowledge in the field of cybersecurity, helping readers think like scientists to master cybersecurity principles and overcome cybersecurity challenges. This innovative text adopts a scientific approach to cybersecurity, identifying the science’s fundamental elements and examining how these elements intersect and interact with each other. Author Phil Quade distills his over three decades of cyber intelligence, defense, and attack experience into an accessible, yet detailed, single-volume resource. Designed for non-specialist business leaders and cybersecurity practitioners alike, this authoritative book is packed with real-world examples, techniques, and strategies no organization should be without. Contributions from many of the world’s leading cybersecurity experts and policymakers enable readers to firmly grasp vital cybersecurity concepts, methods, and practices. This important book: Guides readers on both fundamental tactics and advanced strategies Features observations, hypotheses, and conclusions on a wide range of cybersecurity issues Helps readers work with the central elements of cybersecurity, rather than fight or ignore them Includes content by cybersecurity leaders from organizations such as Microsoft, Target, ADP, Capital One, Verisign, AT&T, Samsung, and many others Offers insights from national-level security experts including former Secretary of Homeland Security Michael Chertoff and former Director of National Intelligence Mike McConnell The Digital Big Bang is an invaluable source of information for anyone faced with the challenges of 21st century cybersecurity in all industries and sectors, including business leaders, policy makers, analysts and researchers as well as IT professionals, educators, and students.
An explosive and historic book of true crime and an emotionally powerful and revelatory memoir of a man whose ten-year search for his biological father leads to a chilling discovery: His father is one of the most notorious-and still at large-serial killers.
Provides young adults with a review of cryptography, its evolution over time, and its purpose throughout history from the era of Julius Caesar to the modern day.