Authentication Without a Network: Redefining Secure Out-of-Band Access

Adam Cady

Out-of-Band Management (OOBM) is designed for worst-case scenarios—yet most solutions rely on primary network connectivity to authenticate users. When that network fails, authentication systems often fail with it, forcing organizations to fall back on weak credentials at the most dangerous moment.

In this article, Communication Devices, Inc. (CDI) introduces a breakthrough capability: fully functional two-factor authentication that operates with zero network connectivity. Enforced entirely within a FIPS 140-3 Level 3 validated cryptographic boundary, CDI’s approach maintains CAC/PIV authentication, PIN validation, protected audit logs, and Zero Trust principles—even during total outages.

Designed, manufactured, and validated in the United States, CDI’s offline 2FA sets a new security standard for federal agencies, defense organizations, and critical infrastructure operators who cannot afford authentication failure during crisis events.