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Deltawall
Technical specifications

Every capability, and every limit, on one page.

The reference for security architects and procurement. Anything marked Roadmap is built or planned but not offered today.

Specifications

The platform in detail.

Browsers
ChromeEdgeFirefoxManifest V3. The on-device model runs in Chrome and Edge; Firefox uses the deterministic layer.
AI sites covered
ChatGPTClaudeGeminiMicrosoft CopilotPerplexityDeepSeek
Financial data
IBANPayment cardDutch VAT (BTW)KvK number
National identifiers
BSNGerman Steuer-IDGerman SteuernummerEU national IDBIG number
Personal data
EmailPhoneIP addressDate of birthDutch postcode
Secrets
API keyGeneric secretPrivate keyJWTAWS keyGCP key
Model classes
Person namePostal addressHealth dataOrganisation-confidentialOn-device ONNX model, 13 MB.
Other
Source codeUninspectable content
File types
PDFDOCXXLSXPPTXCSVTXTMDJSON
Policy actions
AllowLogWarnRedactBlock
Policy templates
GDPR baselineFinancial (DORA-aligned)Government (strict EU residency)Education
Channels
BrowserGatewayDesktop MDM only
Gateway providers
Mistral EUAzure OpenAI EU EUOpenAIAnthropicDeepSeek
Roles
OwnerAdminSecurity engineerAnalystAuditorDPO
Single sign-on
Microsoft Entra ID RoadmapGoogle Workspace RoadmapOkta RoadmapKeycloak RoadmapGeneric OIDC RoadmapBuilt and dormant; offered after early access. SAML needs an external SAML-to-OIDC bridge.
Shadow-AI discovery
Discovery ingest API RoadmapRequires a DNS or metadata feed before it can report; not offered today.
Desktop apps (MDM)
ChatGPT DesktopClaude DesktopDeepSeek DesktopMicrosoft Copilot
MDM outputs
AppLocker policyDNS blocklistJamf profile
Evidence export
JSON packCSVPDF
Cryptography
Hash chainMerkle sealsEd25519 signaturesSalted one-way hashes
Supply chain
CycloneDX SBOMDependency audit gateContainer image scanningCRA incident workflow
Interception
NoneNo TLS interception, no root CA, no kernel driver, no per-app hooking. User mode and browser sandbox only.
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
De Boelelaan 1095 A
1081 HV Amsterdam, the Netherlands