Every profession has its sensitive files. And its own obligations. This guide pulls them together sector by sector, so a lawyer, a doctor, an HR lead or a local-government officer can put AI (ChatGPT, Claude…) to work on their documents without ever exposing the data of their clients, patients, employees or citizens. The rest is just method.
The principle, common to every profession
The rule does not change from one job to the next. No identifying data leaves for a third-party AI. None. In practice, you pseudonymize the document first, meaning every name, address or number is swapped for a reversible pseudonym, the AI then works on that masked version, and you re-identify the result locally, on your own machine. The model only ever sees pseudonyms.
Find your sector
Now find yours. Each article below takes one specific profession, lists the sensitive data hiding inside it and walks through the right method, from a payslip to a notarial deed. Pick one. Your starting point is just below.
All the articles in this guide
- Anonymize a payslip before AIMask employee and SSN, keep the useful amounts.
- Notaries: using AI on deeds without breaching confidentialityEstates, gifts, sales: mask the identity, keep the structure.
- Education: using AI without exposing student dataMinors' data: mask identity, keep the educational content.
- Public sector: AI without exposing citizen dataCitizen data, heightened responsibility, the simple rule.
- Real estate: anonymize a mandate or lease before AIMask the parties and address, keep the price useful to the AI.
- Insurance: anonymize a claim file before AIMask the policyholder identity, keep the data useful to the AI.
- Banking and finance: using AI without exposing client dataCredit, KYC, statements: where the risk sits, and how to handle it.
- Consulting: using AI without exposing client dataEngagement notes, slides, client data: the 4-step method.
- AI and the legal department: framing internal useA clear policy, a simple alternative, light oversight.
- Anonymize an employment contract before AIName, salary, ID: what to mask, and the method.
- Anonymize a tax return before ChatGPTSIREN, amounts, IBAN: what to mask, and the method.
- Médical confidentiality and AI: what the law saysLegal framing, ethics, and the method to stay covered.
- GDPR and health data: using AI without the riskArticle 9, médical confidentiality, and the method to stay compliant.
- Screen CVs with AI without discriminatingCandidate data, bias, the legal framing, the method.
- Anonymize a médical report before ChatGPTWhat to mask, médical confidentiality, GDPR, the method.
- Lawyers: ChatGPT without breaching professional secrecy?AI and professional secrecy : meeting bar requirements.