{"slug": "ai-used-to-decrypt-medieval-ciphers", "title": "AI Used to Decrypt Medieval Ciphers", "summary": "Researchers are deploying machine learning algorithms to break historical pencil-and-paper ciphers used in medieval plots, love letters, and diplomatic correspondence. The AI-driven decryption is unlocking secrets from centuries-old documents that have resisted traditional codebreaking methods.", "body_md": "## AI Used to Decrypt Medieval Ciphers\n\nResearchers are using machine learning algorithms to [decrypt](https://www.bbc.com/future/article/20260527-plots-love-letters-and-diplomacy-the-medieval-secrets-being-revealed-by-ai) historical pencil-and-paper ciphers.\n\nResearchers are using machine learning algorithms to [decrypt](https://www.bbc.com/future/article/20260527-plots-love-letters-and-diplomacy-the-medieval-secrets-being-revealed-by-ai) historical pencil-and-paper ciphers.\n\n[\nSubscribe to comments on this entry ](https://www.schneier.com/blog/archives/2026/06/ai-used-to-decrypt-medieval-ciphers.html/feed/)\n\nSidebar photo of Bruce Schneier by Joe MacInnis.", "url": "https://wpnews.pro/news/ai-used-to-decrypt-medieval-ciphers", "canonical_source": "https://www.schneier.com/blog/archives/2026/06/ai-used-to-decrypt-medieval-ciphers.html", "published_at": "2026-06-03 11:04:40+00:00", "updated_at": "2026-06-03 11:10:56.266176+00:00", "lang": "en", "topics": ["machine-learning", "artificial-intelligence", "ai-research"], "entities": ["Bruce Schneier", "BBC"], "alternates": {"html": "https://wpnews.pro/news/ai-used-to-decrypt-medieval-ciphers", "markdown": "https://wpnews.pro/news/ai-used-to-decrypt-medieval-ciphers.md", "text": "https://wpnews.pro/news/ai-used-to-decrypt-medieval-ciphers.txt", "jsonld": "https://wpnews.pro/news/ai-used-to-decrypt-medieval-ciphers.jsonld"}}