DEV Community: Thomas The latest articles on DEV Community by Thomas (@tgaudibert). https://dev.to/tgaudibert https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4106552%2F27aa4a91-d6fa-43f6-878d-ab0a4e9269a8.png DEV Community: Thomas https://dev.to/tgaudibert en Anonymizing a PDF or a scan before sending it to an AI: why copy-paste is not enough Thomas Tue, 08 Sep 2026 07:30:34 +0000 https://dev.to/tgaudibert/anonymizing-a-pdf-or-a-scan-before-sending-it-to-an-ai-why-copy-paste-is-not-enough-33eg https://dev.to/tgaudibert/anonymizing-a-pdf-or-a-scan-before-sending-it-to-an-ai-why-copy-paste-is-not-enough-33eg <p>A scanned contract, a bank statement, a medical report. What these files really contain, what OCR damages, and a method so that what reaches the model is exactly what you think it is.</p> <p><strong>Read the full article → <a href="https://openmasq.com/en/blog/anonymize-pdf-before-ai" rel="noopener noreferrer">https://openmasq.com/en/blog/anonymize-pdf-before-ai</a></strong></p> <p><em>Originally published at <a href="https://openmasq.com/en/blog/anonymize-pdf-before-ai" rel="noopener noreferrer">openmasq.com</a>.</em></p> privacy ai opensource security Why masking has to happen client-side, before sending Thomas Mon, 07 Sep 2026 07:30:42 +0000 https://dev.to/tgaudibert/why-masking-has-to-happen-client-side-before-sending-13bb https://dev.to/tgaudibert/why-masking-has-to-happen-client-side-before-sending-13bb <p>Sending a prompt to a third-party model means handing over your data. We explain why the only solid guarantee is to mask sensitive information on the device, before it leaves your network.</p> <p><strong>Read the full article → <a href="https://openmasq.com/en/blog/client-side-masking" rel="noopener noreferrer">https://openmasq.com/en/blog/client-side-masking</a></strong></p> <p><em>Originally published at <a href="https://openmasq.com/en/blog/client-side-masking" rel="noopener noreferrer">openmasq.com</a>.</em></p> privacy ai opensource security GDPR and AI assistants at work: what local masking changes, and what it does not Thomas Sun, 06 Sep 2026 07:30:32 +0000 https://dev.to/tgaudibert/gdpr-and-ai-assistants-at-work-what-local-masking-changes-and-what-it-does-not-28dj https://dev.to/tgaudibert/gdpr-and-ai-assistants-at-work-what-local-masking-changes-and-what-it-does-not-28dj <p>Minimization, legal basis, transfers outside the EU, processors: where on-device masking moves the question, and where your part remains to be done.</p> <p><strong>Read the full article → <a href="https://openmasq.com/en/blog/gdpr-ai-assistants-at-work" rel="noopener noreferrer">https://openmasq.com/en/blog/gdpr-ai-assistants-at-work</a></strong></p> <p><em>Originally published at <a href="https://openmasq.com/en/blog/gdpr-ai-assistants-at-work" rel="noopener noreferrer">openmasq.com</a>.</em></p> privacy ai opensource security National identifiers: why 40 countries, a check digit and synthetic tests Thomas Sat, 05 Sep 2026 07:30:22 +0000 https://dev.to/tgaudibert/national-identifiers-why-40-countries-a-check-digit-and-synthetic-tests-3kjp https://dev.to/tgaudibert/national-identifiers-why-40-countries-a-check-digit-and-synthetic-tests-3kjp <p>Detecting a social security number, a NIF or a codice fiscale without false positives takes more than a regular expression. What the engine checks, and why a detector can be reviewed in an evening.</p> <p><strong>Read the full article → <a href="https://openmasq.com/en/blog/national-identifiers-40-countries" rel="noopener noreferrer">https://openmasq.com/en/blog/national-identifiers-40-countries</a></strong></p> <p><em>Originally published at <a href="https://openmasq.com/en/blog/national-identifiers-40-countries" rel="noopener noreferrer">openmasq.com</a>.</em></p> privacy ai opensource security ChatGPT and professional secrecy: what a lawyer, a notary or an accountant can send, and how Thomas Fri, 04 Sep 2026 07:30:42 +0000 https://dev.to/tgaudibert/chatgpt-and-professional-secrecy-what-a-lawyer-a-notary-or-an-accountant-can-send-and-how-1822 https://dev.to/tgaudibert/chatgpt-and-professional-secrecy-what-a-lawyer-a-notary-or-an-accountant-can-send-and-how-1822 <p>Professional secrecy does not forbid using an AI assistant. It forbids letting anything that identifies a client into it. Where the line runs, and a method that holds up in front of your bar association and your regulator alike.</p> <p><strong>Read the full article → <a href="https://openmasq.com/en/blog/chatgpt-professional-secrecy" rel="noopener noreferrer">https://openmasq.com/en/blog/chatgpt-professional-secrecy</a></strong></p> <p><em>Originally published at <a href="https://openmasq.com/en/blog/chatgpt-professional-secrecy" rel="noopener noreferrer">openmasq.com</a>.</em></p> privacy ai opensource security "See what the model saw": why we replay the substitution instead of showing a copy Thomas Thu, 03 Sep 2026 18:27:53 +0000 https://dev.to/tgaudibert/see-what-the-model-saw-why-we-replay-the-substitution-instead-of-showing-a-copy-4p73 https://dev.to/tgaudibert/see-what-the-model-saw-why-we-replay-the-substitution-instead-of-showing-a-copy-4p73 <p>A comparison taken on the side could lie. OpenMasq’s panel recomputes the sent text from the conversation’s vault — which is what makes it something you can show a DPO.</p> <p><strong>Read the full article → <a href="https://openmasq.com/en/blog/what-the-model-saw" rel="noopener noreferrer">https://openmasq.com/en/blog/what-the-model-saw</a></strong></p> <p><em>Originally published at <a href="https://openmasq.com/en/blog/what-the-model-saw" rel="noopener noreferrer">openmasq.com</a>.</em></p> privacy ai opensource security