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Deltawall
The Deltawall platform

Seven components. One policy. One evidence log.

Deltawall secures the last mile of AI usage: the moment a person types or uploads into an AI tool. Inspection and enforcement happen in the browser; governance and evidence happen in the console.

The Deltawall posture overview: AI interactions, detections, blocks and redactions over fourteen days.
End to end

From a keystroke to a signed record, in the page.

Nothing in this path decrypts traffic, reroutes the network or runs below the browser sandbox.

  • A person types or uploads into a covered AI site
  • The extension classifies the content on the device
  • The policy engine resolves department, data class and destination to one action
  • Redact or Block happens in the page, before the request leaves
  • Only the label, a salted hash and metadata are recorded
  • The record is chained, sealed and signed in the evidence log
The Deltawall evidence explorer with hash-chained events.
Beyond the browser

Desktop AI apps, governed through your MDM.

MDM policy bundles

Export an AppLocker policy, a DNS blocklist or a Jamf profile to allow or block ChatGPT Desktop, Claude Desktop, DeepSeek Desktop and Microsoft Copilot.

  • Governed, never intercepted
  • A Redact rule on the desktop channel returns an error rather than silently downgrading

Supply-chain hygiene

A CycloneDX SBOM for every artifact, a dependency audit gate, container image scanning and a Cyber Resilience Act incident workflow.

  • No kernel components anywhere in the product
  • User mode and browser sandbox only
By the numbers

The platform, counted.

25data classes
8file formats scanned on the device
6AI sites covered, named in the contract
4EU policy templates
Honest limits

What Deltawall does not do. Printed on purpose.

A security product that hides its limits hands them to the attacker. Ours are in the contract.

  • No OCR.Scanned PDFs and images are flagged as uninspectable, not read. Your policy decides what happens to them.
  • Redaction applies to typed prompts.The user presses send again after masking. A file that needs redaction is stopped, not rewritten.
  • Desktop apps are governed, not intercepted.MDM policy bundles block or allow them. A Redact rule on the desktop channel returns an error; it never silently downgrades.
  • The model runs in Chrome and Edge.Firefox enforces with the deterministic detector layer.
  • Coverage is bounded to the listed AI sites.Six today: ChatGPT, Claude, Gemini, Microsoft Copilot, Perplexity and DeepSeek. The contract names them.
  • It fails open.If the upload guard or the model errors or times out, the AI site keeps working. A broken scanner never breaks the workday.
  • SSO is on the roadmap.Sign-in today is email and magic link. OIDC single sign-on is built but not yet offered.
  • Shadow-AI discovery is on the roadmap.The ingest API exists; it needs a DNS or metadata feed before it can report anything, so we do not sell it yet.
Get started

See it stop real-looking data in a real browser.

A 30-minute technical walkthrough: a prompt redacted, a file stopped, the dashboard, and an evidence pack verified offline in front of you.

No slide deck. Synthetic data only.

The VU Amsterdam campus in the Zuidas at blue hour, lit windows reflected in a wet plaza with bicycles parked out front.
Where we are

Built in Amsterdam, at VU StartHub.

Deltawall works from VU StartHub, the startup hub of Vrije Universiteit Amsterdam, on campus in the Zuidas. Meet the team for a demo in person.

VU StartHub, NU Building
De Boelelaan 1111
1081 HV Amsterdam, the Netherlands