Zero-Outbound  ·  Air-Gap

Separated from the internet.A standalone data vault.

Documents and AI operate within the vault, with no outbound internet connection.

Store, search and summarise documents on one device. It operates only on your office’s private Wi-Fi network and requires a PUF security key to start.

  • Private-network local AI, NPU 6 TOPS
  • AES-256 mTLS
  • Built-in physical vault
Front view of D-GO Quantum Data Vault, showing the power dial, LEDs, USB ports, screen and lower storage drawer

Device screen

The vault cannot start without the key. Insert the registered PUF USB hardware key into the vault.

0incidents

External data leaks

Private network with no outbound communication path

PUF

Unclonable security chip

Semiconductor fingerprint authentication; removing the key locks the vault

0KRW

No subscription fees

Perpetual licence with built-in local AI search and summarisation

ICTK PUFKC certificationUL CLASS 125MADE IN KOREA

Eliminate outbound communication paths.

An on-premises AI security vault separated from the internet — Quantum Data Vault D-GO

  • Semiconductor fingerprint key

    PUF

    Authentication uses each chip’s unique fingerprint. The security key is erased if the device is compromised.

  • No external internet connection

    Air-Gap · Zero-Outbound

    Designed without an outbound internet communication path.

  • Three access tiers

    Multi-level access control

    Store documents separately in C General, D Protected and E Confidential tiers.

  • Built-in AI document assistant

    Private-network Local RAG LLM

    Search and summarise documents on the device, without the internet.

  • Multiple layers of local encryption

    E2EE end-to-end encryption

    Data is encrypted on the client device before storage, so even server administrators cannot view its contents.

  • Built-in storage for physical assets

    Physical security vault

    Store A4 contracts and official seals in the built-in compartment.

The vault cannot start without the PUF keyAES-256 encryption · RSA-2048 · Mutual TLS authentication

View Product Details Security Architecture

Keep

Documents and physical assets in one vault

Store contract files alongside seals and original documents.

Protect

No outbound connection

Physically separated from the internet, with no need to send data to the cloud.

Use AI

AI within your vault

Search and summarise vault documents with AI, without external transfers or subscription fees.

D-GO App

D-GO App Features

Manage your vault with D-GO Vault Management and protect your data with D-GO Secure Folder.

A

D-GO Vault Management

Monitor the status of your connected vault through the app.

B

D-GO Secure Folder

Protect files and audio recordings, timestamp documents, provide proof of document viewing, and manage keys and certificates.

  • Data Encryption & Decryption

  • Document Timestamping

  • Proof of Document Viewing

  • Audio Recording & Storage

  • Key & Certificate Management

Explore App Features

Every time you start the vault — Local AI without the internet

The vault’s startup sequence completes without external connections.

  1. KEY

    1. Connect the hardware key

    Insert the PUF USB key

    Insert the registered PUF USB hardware key into the vault.

    The vault cannot start without the key.

  2. BOOT

    2. Authenticated startup

    Security key authentication

    Check the authentication result on the vault’s screen.

    The vault starts only with an authenticated key. Removing the key locks the entire vault.

  3. AUTH

    3. Security tier authentication

    Verify C, D and E access rights

    Three security tiers: C General (ID and password), D Protected (additional two-factor authentication), and E Confidential (smartphone biometrics).

    More sensitive documents require stronger authentication.

  4. ACCESS

    4. Access your assigned tier

    View authorised C, D and E content

    Access authorised documents and search or summarise them offline. Store physical items in the built-in A4 document drawer.

    Local AI starts at the same time.

Connection via a private network (Private Wi-Fi)

  • Desktop app
  • Mobile app
  • PUF USB key
Connect to D-GO
No internet connection

Access is through the dedicated app only. Browser access is blocked and the vault has no internet connection.

Supported platforms: Windows · macOS · Linux · iOS · Android

Three security tiers

More sensitive documents require stronger authentication.

Three security tiers and their authentication requirements
TierAuthenticationDocument scope
CGeneralID and passwordEveryday business documents
DProtected+ Two-factor authenticationContracts, HR and finance
EConfidential+ BiometricsCritical confidential data and intellectual property

Onboarding

Initial setup

Complete these steps once. After setup, insert the key and start the vault.

Administrator

One-time initial setup

  1. 1Install the appPC and mobile
  2. 2Register the deviceProximity and PUF verification
  3. 3Approve on the vaultSix-digit code
  4. 4Register the administratorSet a password
  5. 5DashboardCentral management

Team member

Register through an administrator invitation

  1. 1Install the appPC and mobile
  2. 2Scan the invitation QR codeSingle-use QR code
  3. 3Create an accountRegister an ID and password
  4. 4Sign inConnect using your account
  5. 5Access your assigned tierAuthorised C, D and E tiers

Straightforward deployment

No monthly fees

Standalone deployment with a perpetual licence

No cloud contract or network installation

No external service subscriptions or network installation required.

One device on your desk

Designed for straightforward desktop installation.

Who it is for

  • Legal and accounting

    Professionals using AI to work with confidential contracts

  • Research and manufacturing

    Teams storing drawings and unpublished technical information locally

  • Healthcare and public services

    Organisations handling documents containing personal data under regulatory requirements

Q & A

Frequently asked questions

Can I use AI without the internet?
Yes. Local RAG and LLM run inside the vault to search and summarise documents without external transfers.
What happens if the device is stolen or dismantled?
The PUF security key is automatically erased to prevent decryption if the device is physically compromised.
Is installation difficult?
Setup takes approximately five minutes after unpacking. Enquiries through the D-GO KakaoTalk channel are accepted around the clock.
Who is D-GO designed for?
Designed for legal and accounting professionals, laboratories, manufacturers, healthcare providers and public bodies handling documents that must remain local.

Sales Partners

ICTK퍼플넷MTT GLOBAL쿠도커뮤니케이션솔모정보기술보헤미안 OS워킹랩

AI that keeps documents local.
See it on a physical device. Request a demonstration.

See key authentication and document search and summarisation on a physical device. Corporate and organisational deployment consultations are available.