DoNotLeakAbout
The leak starts before sending. So does the protection.
Every day, names, emails and client files are pasted into AI assistants, often without anyone noticing. DoNotLeak puts the check where the leak starts: in the hands of the person about to send.
Why now
Exchanges multiply faster than anyone can check them.
People work with AI assistants, partners and suppliers all day long. Each exchange can carry a name, an address, a clause of a contract — and once a text has reached an AI provider, it cannot be taken back.
The data protection officer is expected to keep it all under control, and cannot watch everyone. Blocking does not work either: people route around it. The protection has to join the everyday gesture.
Our bets
Four choices behind the product
- Simplemakes the reflex: one address, paste, copy. Ten seconds becomes a habit before every prompt.
- Showrather than block: you see what would leak, you understand, you decide.
- Verifiablesovereignty, not a promise: a detection that calls no third party, a hermetic and signed build.
- At the sourcethe responsibility: each person acts before the leak; the organisation no longer carries the risk alone.
What we do not claim
Less exposure — not a compliance stamp.
- Every detection misses something. That is why the page shows you everything it found, and why you read before you send.
- Replacing is not anonymising. Placeholders and stand-ins pseudonymise: the rest of the text can still say a lot.
- No surveillance: nothing is blocked, no one is watched; the person decides.
- No legal advice. DoNotLeak helps you share less; it does not judge a contract.
The founder
Alexandre Quach
Founder of Contee
Fifteen years of IT in large organisations — BNP Paribas, Thales, GRDF, France Télévisions, Amadeus — as a product manager, agile coach and developer.
Today: Rust, DevSecOps, and tools that let people use AI without handing over what is not theirs to give. He builds DoNotLeak.
DoNotLeak is a Contee product, built on Walls, Contee’s hardened base.
Contee builds sovereign software in France: robust from birth, running where you decide.
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.