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# Why Companies Can't Control What AI Systems Learn
- URL: https://adjacent.media/signals/why-companies-cant-control-what-ai-systems-learn/
- Published: 2026-07-24T16:13:47.000Z
- Updated: 2026-07-24T16:13:47.000Z
- Description: A firsthand account shows that redacting sensitive information before feeding data to AI systems fails—the model reconstructed deleted details from context clues, turning IT security theater into a false sense of protection.
- Author: Jonathan Greene
- Tags: #signal, theme-consumer, privacy, trust, generational shifts

Source: [Nate’s Substack](https://open.substack.com/pub/natesnewsletter/p/use-ai-sensitive-files)

A firsthand account shows that redacting sensitive information before feeding data to AI systems fails—the model reconstructed deleted details from context clues, turning IT security theater into a false sense of protection. This creates a hard constraint on AI adoption in regulated industries: companies can't safely use frontier models for high-stakes decisions (product launches, legal reviews, financial planning) without accepting that deletion and obfuscation don't work. They face a choice between slower manual processes or genuine access controls that most enterprises haven't built yet.