KYD® The Device Trust Standard
Overview
Section titled “Overview”KYD® (Know Your Devices) is a normative standard defining the minimum requirements for establishing and maintaining continuous device trust.
KYD® is a registered trademark.
This site is the authoritative source for:
- KYD® Specification v1.0 (normative)
- Canonical language and definitions
- Governance and versioning policy
- Trademark usage and compatibility guidelines
KYD® defines requirements for:
- Device Identity — Persistent identification across operational conditions
- Baseline Formation — Evidence-based establishment of expected behavior
- Device Drift — Detection and evaluation of behavioral deviation
- Trust Evaluation — Continuous derivation of trust states from evidence
- Proof Retention — Auditable historical records of trust decisions
The specification is implementation-agnostic.
It defines what must be true, not how it must be engineered.
Purpose
Section titled “Purpose”KYD® exists to provide a shared, verifiable framework for device trust evaluation across systems, environments, and industries.
It is designed to be referenced in:
- Technical specifications
- Procurement requirements
- Audit and compliance processes
- Insurance underwriting
- Regulatory frameworks
Governance
Section titled “Governance”KYD® is a registered trademark:
- United Kingdom: UK00004274651 (Registered 16 January 2026)
- United States: Serial 99480838 (Pending)
- European Union: EUTM-019304555 (Pending)
The standard is maintained for long-term stability. Changes are versioned and documented.
See Governance & Versioning Policy for evolution process.
See Compatibility & Usage Guidelines for proper trademark use.
Status
Section titled “Status”Current Version: 1.0
Status: Final
Published: January 2026
- KYD® Specification v1.0 — Normative requirements
- Canonical Language — Controlled terminology
- Governance Policy — Maintenance and versioning
- Compatibility Guidelines — Usage and conformance
Implementation
Section titled “Implementation”The specification may be implemented in software, hardware, or hybrid architectures.
Reference Implementation:
VerifiedDevice — Commercial implementation of the KYD® standard.
Implementations claiming KYD® conformance must satisfy all normative requirements defined in the specification.
Use of the KYD® name in connection with commercial offerings requires adherence to the Compatibility & Usage Guidelines.
Documents
Section titled “Documents”Normative Documents
Section titled “Normative Documents”Canonical Language
Section titled “Canonical Language”Non-Normative Documents
Section titled “Non-Normative Documents”Contact
Section titled “Contact”For questions regarding:
- Specification interpretation: [email protected]
- Governance & versioning: [email protected]
- Trademark usage: [email protected]
- Implementation guidance: [email protected]
- General inquiries: [email protected]
For commercial implementation inquiries: VerifiedDevice
Legal Notice
Section titled “Legal Notice”KYD® is a registered trademark in the United Kingdom (UK00004274651).
United States registration pending (Serial 99480838).
European Union registration pending (EUTM-019304555).
Use of the KYD® name or references to KYD® compatibility must align with the published Compatibility & Usage Guidelines.
Know Your Devices™ is a trademark. VerifiedDevice is the reference implementation of the KYD® standard.
The KYD® standard is governed independently of any specific implementation or vendor.
Last Updated: January 2026
Site: knowyourdevices.org
Authority: KYD® Trademark Owner