- Director: Morten Tyldum
- Year: 2014
Overview
Alan Turing joins the British cryptanalysis team at Bletchley Park to crack the German Enigma code. The team struggles because the Germans change the machine's settings daily, rendering manual calculation methods useless. Turing decides to build an electromechanical machine to automate the decryption process, which frustrates his colleagues and military superiors. He demands resources and political support from Winston Churchill to bypass local funding constraints. After months of failures, Turing realizes they don't need to check every combination; they can use repeated phrases to narrow down the search grid. The machine successfully decodes the messages, allowing the Allies to win the war.
Takeaways
Cracking the German Enigma code wasn't just a math problem, it was a race against the clock because the Germans reset the settings every single night. Since humans couldn't work fast enough to crack it manually, Alan Turing realized they needed a machine to beat a machine. By focusing on repetitive phrases like weather reports, they saved hours of useless calculations. Even after cracking it, they couldn't just act on every piece of intel immediately, or the Germans would realize their code was broken. It is a tough reminder that winning a war sometimes means keeping secrets even from the people you are trying to save.