Pearl Harbor: The Cryptography Failure That Changed History

Why couldn't the US decrypt Japan's messages before the attack on Pearl Harbor? This video explores the critical intelligence failures and cryptographic challenges that led to one of the most devastating surprises in military history. Discover the untold story behind the missed signals and how this tragedy reshaped modern warfare. Learn about the Purple cipher machine, intercepted messages, and the lessons learned from this historic intelligence breakdown. ────────────────────────────── 📋 'Chapter': 『00:03』 Coded Threats: The Intercepted Warnings 『00:31』 The Purple Machine: A Cryptographic Enigma 『01:02』 Broken Links: Bureaucratic Delays 『01:27』 Radar’s Glimpse: The Missed Opportunity 『01:51』 Dawn of Deception: Japan’s Silent Strike 『02:12』 The Unread Warning: Decryption Too Late 『02:35』 Sky Filled with Fire: The First Wave 『02:54』 Sinking of the Arizona: A Symbolic Tragedy 『03:13』 Aftermath and Ashes: Counting the Cost 『03:32』 The Lesson Unlearned: A Cryptanalyst’s Resolve ──────────────────────────────