How do organisations use digital identity wallets to support privacy and secure access?

Why This Matters for Security Teams

digital identity wallets shift identity proofing from repeated disclosure to selective presentation, which can reduce overcollection and improve user privacy. For security teams, the hard part is not the wallet itself, but preserving assurance when identity attributes move across services and trust boundaries. Controls must still satisfy authentication strength, consent, auditability, and revocation expectations under EU General Data Protection Regulation (GDPR) and the baseline control discipline in NIST SP 800-53 Rev 5 Security and Privacy Controls. The security mistake is to treat a wallet as a simple login shortcut instead of a high-trust identity container that can still be phished, replayed, or poorly bound to lifecycle events.

NHI Management Group’s research shows how fragile identity control becomes when governance is weak: the Ultimate Guide to NHIs notes that 97% of NHIs carry excessive privileges, which is a useful warning for wallet ecosystems too because privilege must be constrained at the point of use, not assumed safe at issuance. In practice, many security teams discover wallet-risk only after a trust decision has already been made downstream, rather than through intentional assurance design.

How It Works in Practice

Organisations usually use wallets as a presentation layer for verified claims, such as age, employment status, membership, or government-issued attributes. The wallet holder shares only the minimum data needed, often through a verifiable presentation, while the relying party validates issuer authenticity, signature integrity, and freshness. Current guidance suggests that privacy gains are real only when selective disclosure is paired with strong binding between the wallet, the subject, and the authenticating device or session.

In practice, implementation depends on four controls:

• Strong identity proofing before wallet enrolment, so the initial issuance is trusted.
• Cryptographic proof of possession at presentation time, so a copied claim cannot be reused casually.
• Attribute minimisation and purpose limitation, so services request only what they need.
• Lifecycle controls for revocation, expiration, and recovery, so lost devices or compromised wallets do not become long-lived access paths.

For architecture teams, this is where wallet models intersect with federated identity and policy enforcement. The relying party still needs a policy decision point that can validate the presentation, check assurance level, and decide whether the claim is sufficient for the transaction. That makes wallet-based access closer to contextual authorisation than to classic username and password authentication. For reference, the OWASP Non-Human Identity Top 10 is useful for understanding how strong identity artifacts still fail when tokens, secrets, or trust relationships are not governed end to end. These controls tend to break down when organisations let wallet assertions live longer than the upstream credential or when recovery workflows bypass the normal assurance chain.

Common Variations and Edge Cases

Tighter wallet assurance often increases onboarding friction, requiring organisations to balance privacy benefit against user recovery complexity. That tradeoff becomes visible in high-risk environments where lost-device handling, delegated access, or cross-border verification creates more failure modes than the core login flow. Best practice is evolving, and there is no universal standard for this yet.

Some deployments favour government-backed digital identity wallets, while others use enterprise-issued credentials or sector-specific wallets. The assurance model changes with each design. If a wallet is used for low-risk access, organisations may accept fewer attributes and lighter verification. If it gates regulated services, the reliance party should demand stronger issuer trust, explicit revocation checks, and tighter session controls. The eIDAS 2.0 — EU Digital Identity Framework is especially relevant where interoperable digital wallets are being introduced under formal public-sector rules, while Top 10 NHI Issues remains a reminder that weak lifecycle management is usually the hidden failure point. Privacy improves only if organisations resist storing wallet-shared data as a new shadow profile. Otherwise, they reintroduce the same overcollection problem the wallet was meant to solve.

Related resources from NHI Mgmt Group

• How should security teams use digital identity wallets without weakening access control?
• How should organisations use access reviews to support PCI DSS compliance?
• When should organisations use access management instead of identity management?
• How should organisations prepare for portable identity in digital wallets?