Enigma Cipher Device Still Holds Secrets for Cyber Pros

Marc Sachs, a collector and senior cybersecurity engineer, outlines the history of the Enigma machine and will present at RSAC 2026 to highlight how Enigma's engineering flaws, overconfidence, and poor operational practices (e.g., inexperienced operators and lack of red teaming) led to its compromise; the article frames these historical lessons as relevant to modern cybersecurity challenges such as supply chain risks and human factors rather than reporting any active cyber incident.