Digital Trust Maturity Model
(Repo-ready Markdown)
Digital Trust Maturity Model
The Digital Trust Maturity Model (DTMM) provides a structured way for organisations to assess how effectively they manage the trust signals emitted by their digital systems.
The model complements traditional cybersecurity maturity assessments by focusing on observable trust signals rather than internal controls alone.
It enables organisations to understand their Digital Trust Posture and identify areas for improvement.
Maturity Levels
The model defines five levels of digital trust maturity.
| Level | Description |
|---|---|
| Level 1 | Unaware |
| Level 2 | Reactive |
| Level 3 | Managed |
| Level 4 | Integrated |
| Level 5 | Trust Leader |
These levels represent the evolution from unmanaged digital trust signals to proactive trust governance.
Level 1 — Unaware
Organisations at this level have little visibility into the signals their digital systems emit.
Typical characteristics include:
- no inventory of domains or digital assets
- email authentication controls partially implemented or absent
- limited visibility of third-party SaaS dependencies
- trust signals not considered in governance discussions
Trust failures may occur unexpectedly because digital trust signals are not actively monitored.
Level 2 — Reactive
Organisations begin addressing trust issues after incidents or external pressure.
Typical characteristics include:
- partial implementation of email authentication controls
- ad hoc management of domain registrations
- trust signals reviewed after incidents
- limited coordination between teams managing digital systems
Trust improvements occur, but only in response to problems.
Level 3 — Managed
Digital trust signals are actively monitored and managed.
Typical characteristics include:
- domain inventories maintained
- email authentication policies enforced
- trust signals regularly assessed
- clear ownership of key Trust Surface domains
Organisations at this level can identify and address weak trust signals before incidents occur.
Level 4 — Integrated
Digital trust considerations are integrated into governance and operational processes.
Typical characteristics include:
- Trust Surface reviews incorporated into risk management processes
- trust signals included in executive reporting
- vendor trust signals assessed during procurement
- digital trust posture reviewed regularly by leadership
Trust becomes an explicit organisational objective.
Level 5 — Trust Leader
Organisations at this level actively demonstrate and communicate digital trust leadership.
Typical characteristics include:
- strong trust signals across all Trust Surface domains
- transparent communication of trust posture
- proactive governance of vendor ecosystems
- leadership in digital trust practices
These organisations recognise digital trust as a strategic asset.
Domain-Level Maturity
Organisations may reach different maturity levels across Trust Surface domains.
Example:
| Domain | Maturity |
|---|---|
| Identity | Level 3 |
| Domains & DNS | Level 4 |
| Email Integrity | Level 2 |
| Digital Services | Level 3 |
| Infrastructure | Level 2 |
| Third-Party Ecosystem | Level 1 |
This allows organisations to prioritise improvements where trust signals are weakest.
Maturity Progression
Progression through the maturity levels typically follows this pattern:
Unaware → Reactive → Managed → Integrated → Trust Leader
Improvement usually occurs gradually as organisations strengthen governance and operational practices.
Relationship to the Trust Surface Framework
The Digital Trust Maturity Model works alongside the core framework components.
| Framework Component | Purpose |
|---|---|
| Trust Surface Map | Identifies the systems influencing digital trust |
| Trust Signal Catalogue | Defines measurable trust signals |
| Trust Surface Lifecycle | Provides a governance process |
| Digital Trust Maturity Model | Enables benchmarking and improvement |
Together these elements allow organisations to measure, manage, and improve digital trust posture.
Why Maturity Matters
Digital trust does not improve automatically.
Without structured governance, trust signals can degrade as systems evolve and responsibilities shift across teams.
The maturity model provides organisations with a clear path for strengthening digital trust over time.
Status of This Document
This maturity model forms part of the Trust Surface Framework draft, published for consultation and discussion.
The model may evolve as organisations apply the framework and provide feedback.