DoNotLeakShowcase
Three documents, three everyday reflexes.
The request people type every day, the document that goes with it, and what the AI receives once DoNotLeak has been through it.
Health
“Explain this medical letter to me.”
What you paste
Dear colleague, I am referring Claire Lemoine, born 14/03/1968, for a cardiology opinion. She lives at 12 rue des Lilas, 69003 Lyon, and can be reached on 06 39 98 27 51. Kind regards, Paul Garnier
What the AI receives
Dear colleague, I am referring [[PERSON-1]], born [[DATE_OF_BIRTH-1]], for a cardiology opinion. She lives at [[ADDRESS-1]], and can be reached on [[PHONE-1]]. Kind regards, [[PERSON-2]]
- Replaced
- two names · a date of birth · an address · a phone number
- Why it matters
- A named patient’s health: special-category data under the GDPR, covered by medical secrecy.
Everyday life
“Tell me what to do with this letter.”
What you paste
Sophie Delcourt 8 avenue Victor Hugo, 33000 Bordeaux Re: refund of an overpayment The transfer will be made within 30 days to the account FR76 3000 6000 0112 3456 7890 189. Any question: sophie.delcourt@example.org.
What the AI receives
[[PERSON-1]] [[ADDRESS-1]] Re: refund of an overpayment The transfer will be made within 30 days to the account [[IBAN-1]]. Any question: [[EMAIL-1]].
- Replaced
- a name · an address · an IBAN · an email address
- Why it matters
- An identity, an address and a bank account together: what a fraud needs.
Sales
“Pull out the key points so I can answer this tender.”
What you paste
Subject: maintenance of the town hall's computers. Contact: Mr Bruno Perrin, 01 99 00 42 17, bruno.perrin@example.org. Bids due before 15 November; maximum budget EUR 180,000 excl. VAT.
What the AI receives
Subject: maintenance of the town hall's computers. Contact: [[PERSON-1]], [[PHONE-1]], [[EMAIL-1]]. Bids due before 15 November; maximum budget [[MONEY-1]] excl. VAT.
- Replaced
- a name · a phone number · an email address · an amount
- Why it matters
- A named contact and the buyer’s maximum budget: shared with you, not with an AI provider.
The documents are invented. The outputs are not.
Recorded from the engine on 26 September 2026, in placeholder mode, unedited. Your own text works the same way, on the page, with no account.
Keep protecting yourself — or your whole organisation.
The page stays open to everyone, with no account. For a team or a company, DoNotLeak can run on your own servers, with its API: let’s talk about it.