PyCon26: LLM Governance, Guardrails, and Presidio When the Guardrail Leaks PII

PyCon26: LLM Governance, Guardrails, and Presidio When the Guardrail Leaks PII(petrostechchronicles.com)

8 points by Aherontas 18 days ago | 1 comment

Aherontas 18 days ago |

Part 1/7 of my PyCon Greece 2026 talk, From Prompt to Proof: a Presidio guardrail masked the ΑΦΜ(tax number in Greece) label but leaked the actual tax identifier to the LLM while returning HTTP 200.

Aherontas 18 days ago |

Part 1/7 of my PyCon Greece 2026 talk, From Prompt to Proof: a Presidio guardrail masked the ΑΦΜ(tax number in Greece) label but leaked the actual tax identifier to the LLM while returning HTTP 200.