storsender – Storsender Field
storsender
Auditable mobile security

Storsender Field

Storsender Field is a hardened, auditable mobile phone for confidential communication. It is based on GrapheneOS and Pixel hardware and provides a mobile security architecture that reduces attack surfaces and protects sensitive work.

Simple. Secure. Under your own control.

Storsender Field operates fully locally, requires no cloud, and always remains under the user’s control. The platform is designed for situations where mobile security cannot be delegated. The entire procurement and integrity process remains fully under the customer’s control.

What makes Storsender Field unique

Security

  • Hardened operating system with Verified Boot
  • Baseband isolation
  • Restrictive permission models
  • Minimized attack surfaces
  • No hidden data paths

Independence

  • No vendor lock‑in
  • No cloud dependency
  • No account requirement
  • No classic MDM agents
  • Sovereign, locally controlled platform

Auditability

  • Factory‑sealed devices directly from the manufacturer
  • Complete installation and verification of all hash signatures
  • Customer‑controlled integrity chain without external dependencies
  • Every phase verifiable in advance for consistency

Who it is for

  • Law firms
  • Tax advisors
  • Auditors
  • Internal investigations
  • M&A teams
  • Consultancies
  • Organizations with increased protection needs
Everywhere mobile communication must remain under one’s own control — without the complexity of classic enterprise systems.

Technical foundation

  • Hardened Pixel devices with GrapheneOS
  • Verified Boot
  • Baseband isolation
  • Restrictive permission models
  • Locally controlled configuration
  • No cloud dependencies
  • No hidden remote access

Leasing model

The cost structure is aligned with the billable hours of the respective law firm or organization and integrates seamlessly into existing workflows. The specific arrangement is defined individually and documented transparently. No ownership transfer takes place.

Next step

Request provisioning for Vienna.

Request confidential initial consultation