Tech Oriented Chronicles🔮 of Petros https://www.petrostechchronicles.com//blog A blog about Tech🤖, Entrepreneurship🚀, Coding👨🏻‍💻, and other interesting topics🧠. en-us undefined (Petros Savvakis) undefined (Petros Savvakis) Wed, 26 Aug 2026 00:00:00 GMT https://www.petrostechchronicles.com//blog/How_I_Measured_The_PII_Layer How I Measured the PII Layer in Front of an LLM (And Version One Masked the Label, Not the Tax Number) https://www.petrostechchronicles.com//blog/How_I_Measured_The_PII_Layer Version one of my PII layer masked the words "tax number" and let the Greek AFM through. How I measured Presidio, the checksum trap, and the threshold that silently detects nothing. Part 1 of From Prompt to Proof. Wed, 26 Aug 2026 00:00:00 GMT undefined (Petros Savvakis) AILLMsPIIPythonEngineeringGDPRProduction