The Habit That Broke Hitler's "Unbreakable" Code

Enigma had 159 quintillion possible settings. German cryptographers believed no rival power could ever brute-force it — and they were right. It wasn't broken by force. It was broken by a habit: a procedure meant to protect against radio static that quietly leaked the machine's own settings, message after message, for years. This is the story of the Polish mathematicians who spotted the leak, the stolen manuals that made it possible, and the six years of routine paperwork that turned Germany's most trusted cipher into an open book — before Britain ever got involved. 0:00 Cold open — a Warsaw clerk breaks Enigma in 15 minutes 1:13 Part 1 — the machine everyone assumed was unbreakable 4:14 Part 2 — the habit that undid it 7:41 Part 3 — the mathematician who saw the seam 11:54 Part 4 — turning a proof into a machine 15:36 Part 5 — the verdict