What are common mistakes with Decentralised Identifier (DID)?

Why DID Mistakes Usually Start With Overclaiming What the Identifier Means

The most common mistake is treating a DID as if it proves who someone is, when it only identifies a subject in a decentralized trust model. A DID can be useful without being authoritative on its own. The real security question is whether the method, DID document, keys, and governance process together establish a trustable relationship for the use case.

Teams also overread the DID document. Associated records can expose endpoints, service references, or verification material, so they should be designed as minimal trust metadata, not as a place to publish everything known about an entity. That distinction matters because DID deployments often fail when people confuse discoverability with disclosure.

Key Management Failures That Turn a DID Deployment Fragile

Key rotation and recovery are the practical failure points that most often break DID implementations in production. If the controlling keys are lost, stale, or hard to replace, the identifier may remain present while the ability to update, authenticate, or recover the DID document is gone.

That is why DID design has to include revocation and recovery from the start, not as an afterthought. Resolver behavior, controller processes, and method-specific governance all affect whether an identifier can keep working after compromise, personnel change, device loss, or organizational transition.

Trust in the DID method itself is another recurring blind spot. Different methods have different governance assumptions, resolution dependencies, and operational failure modes, so a DID is only as reliable as the ecosystem that supports issuance, update, and resolution.

Where DID Governance Usually Goes Wrong in Practice

Many teams focus on the identifier artifact and overlook the operating model around it. For a DID-based system to be trustworthy, you need clear rules for who can create, update, deactivate, or recover identifiers, plus a way to validate that those rules are actually enforced.

Resolver availability is part of that governance problem. If the resolution path is unstable, inconsistent, or dependent on a single service, downstream verifiers may make bad decisions or fail closed at the wrong time. In practice, that creates an availability risk as well as a trust risk.

Publishing too much information in DID-linked records can also create privacy and correlation issues, especially when identifiers are reused across contexts. The safer pattern is to minimise what is published, separate verification data from unnecessary context, and assume that public records can be collected and correlated over time.

Risk and Threat Considerations

DID mistakes often become security issues because the surrounding trust model is weaker than teams assume. If an identifier is mistaken for proof of identity, or if key recovery and revocation are poorly governed, an attacker who gains update authority or compromises a controller can redirect trust, impersonate the subject, or keep using a stale identifier path after compromise.

Failure mechanism: Weak method governance, overexposed DID records, stale keys, or unavailable resolution can let an attacker or operational failure break the link between the identifier and the intended controller.

Impact: Verifiers may trust the wrong subject, fail to detect compromise, or lose the ability to revoke, rotate, or recover identity material when they need it most.

Practitioner Guidance

What to verify: Check that the DID method has explicit governance for creation, update, deactivation, recovery, and resolver behavior before you rely on it in production. If those rules are informal or undocumented, treat the deployment as incomplete even if the identifier format looks correct.

Decision rule: If the DID is being used as an input to access decisions, insist on an independent trust signal, such as verified credential evidence or method-specific assurance, rather than using the DID alone as proof. If the deployment cannot support recovery and revocation cleanly, do not extend it to higher-risk workflows.

What practitioners underestimate: The hard part is rarely minting the DID, it is keeping trust stable across key loss, compromise, organisational change, and resolver failure. A DID is only useful when the ecosystem around it is governed tightly enough to survive those conditions.

Practitioner takeaway: Treat DID as a pointer into a trust system, not as the trust system itself, and validate the method, key lifecycle, and recovery path before you depend on it.

Related resources from NHI Mgmt Group

• Guide: Verifiable Credentials Guide
• What are common mistakes with HMAC?
• What are common mistakes with open source risk?
• What are common mistakes with SBOM Sharing?
• What are common mistakes with Family Of Client IDs?