Right now, one cryptanalytic breakthrough is following another. The autumn of 2026 will undoubtedly go down in the history of cryptology. Thanks to AI-assisted methods, cryptographic cold cases that have resisted solution for decades are suddenly being cracked one after another.

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It is incredible. Yet another Top-50 crypto puzzle has been cracked with the help of AI.

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I have already mentioned on this blog that September 2026 is likely to go down in the history of codebreaking. Over the past few weeks, several long-unsolved cryptograms have been deciphered with the help of artificial intelligence.

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September 2026 will definitely go down in the history of codebreaking. Never before have so many unsolved cryptograms been deciphered in such a short period of time. The culprit, of course, is AI.

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Artificial intelligence is currently enjoying a remarkable run in the world of cryptanalysis. Hardly a week goes by without a new claim that an old cipher has been solved with the help of an AI model. Unfortunately, not every one of these announcements withstands closer scrutiny.

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Back in the days of my former Cipherbrain blog, I maintained a list of the 50 most important unsolved cryptograms. Several have been solved since then.

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