Digital trust for the perimeter-less enterprise and identity

At a glance

What this is: This is an analysis of how the collapse of the traditional corporate perimeter pushes identity, PKI, and lifecycle governance to the centre of enterprise security.

Why it matters: It matters because IAM, NHI, PAM, and device governance teams now have to secure access and trust continuously across cloud, connected devices, and machine identities.

By the numbers:

• 69% of security leaders agree identity management must fundamentally shift to address agentic AI systems.

👉 Read DigiCert's analysis of digital trust in the perimeter-less enterprise

Context

The traditional corporate perimeter has largely dissolved, which means trust can no longer be inferred from location, network boundary, or device ownership. In that environment, identity, certificate, and device governance become the control plane for access, integrity, and secure communication across users, servers, and connected assets.

For IAM and NHI teams, the challenge is not only authenticating more things. It is maintaining lifecycle control over identities, certificates, and machine-to-machine trust as cloud adoption, connected devices, and on-demand orchestration expand the number of actors that must be governed consistently.

Key questions

Q: How should security teams govern trust when the corporate perimeter is no longer reliable?

A: They should move from boundary-based assumptions to explicit identity, certificate, and policy enforcement across every access path. That means users, devices, servers, and services are verified continuously, with ownership assigned for authentication, renewal, and revocation. The core control is not the network edge but the trust lifecycle behind each identity.

Q: Why do connected devices create a different identity governance problem than users?

A: Connected devices operate continuously, often at scale, and may be produced, deployed, and operated by different teams. That makes device identity a lifecycle issue spanning enrolment, secure communication, monitoring, and retirement. If those controls are fragmented, the device becomes a standing trust object rather than a governed identity.

Q: What breaks when certificate lifecycles are not managed centrally?

A: Renewal failures, inconsistent ownership, and missed revocation can disrupt production services and weaken trust in encrypted communication. In a distributed environment, that risk grows because many systems depend on the same trust fabric. Central governance is needed so certificate expiry does not become an operational outage or integrity failure.

Q: How do IAM and PKI teams work together in a perimeter-less enterprise?

A: They should align around shared ownership of access, authentication, and trust enforcement. IAM manages who or what can access resources, while PKI supplies the cryptographic identities and certificates that make those access decisions trustworthy. When the two are disconnected, organisations create gaps between policy and technical enforcement.

Technical breakdown

Zero trust and the end of perimeter-based trust

Zero trust replaces assumed trust with explicit verification at every access decision. In a perimeter-less enterprise, that matters because users connect from unmanaged devices, applications live in distributed cloud services, and operational technology is increasingly networked. The control challenge shifts from defending a boundary to proving identity, enforcing policy, and continuously validating access across sessions and services. That makes identity and access management the practical centre of zero trust, especially when the same enterprise must govern human users, service identities, and device trust without relying on a single trusted network zone.

Practical implication: map every access path to explicit authentication and authorisation checks, then remove any dependency on network location as a trust signal.

PKI lifecycle management in a distributed environment

Public key infrastructure is no longer just about TLS for websites. It now has to support server identities, device identities, secure email, signatures, software integrity, and encrypted communication across many business systems. As certificate validity periods shorten, the administrative burden increases and so does the risk of outages caused by missed renewal or inconsistent governance. The real issue is not only certificate issuance but lifecycle discipline: enrolment, renewal, revocation, and auditability must all be reliable if digital trust is to hold under operational pressure.

Practical implication: treat certificate lifecycle as an operational control with owner, policy, and monitoring rather than a one-time provisioning task.

Connected device identity and secure machine communication

Connected devices introduce a different governance problem from user access because they operate continuously and often at scale. Securing them requires provisioning trustworthy device identity, protecting communication between devices, and governing how they join and remain connected to the network. The article also points to the full lifecycle problem: chip makers, device manufacturers, application developers, operators, and users all influence trust outcomes. That means device identity is not just an enrolment issue, it is a supply chain and operations issue that spans the lifetime of the asset.

Practical implication: build device identity governance across provisioning, operation, and retirement so trust does not depend on a single control point.

Threat narrative

Attacker objective: The objective is to exploit weakened trust boundaries to gain access, manipulate systems, or undermine integrity across cloud and connected environments.

1. Entry occurs when formerly isolated devices, cloud applications, or remote users connect into enterprise environments without a stable perimeter to absorb the risk.
2. Escalation happens as identities, certificates, and machine-to-machine relationships are granted access across distributed services and operational systems.
3. Impact follows when trust, authenticity, or certificate management fails, exposing communications, integrity, and availability across business and operational workflows.

Breaches seen in the wild

• Sisense breach — unauthorized GitLab access led to exfiltration of access tokens, API keys and certificates.
• Cisco DevHub NHI breach — IntelBroker exploited exposed Cisco credentials, API tokens and keys in DevHub.

Read our 52 NHI Breaches Analysis report for a comprehensive view of breaches impacting Non-Human Identities including AI Agents.

NHI Mgmt Group analysis

The perimeter-less enterprise makes identity the control plane, not a supporting function. Once location no longer defines trust, access decisions have to be governed through identity, certificate, and policy controls that apply everywhere. That shifts the centre of gravity from network defence to lifecycle-driven trust administration across users, devices, and services. Practitioners should plan for identity governance to carry more of the security burden than traditional boundary controls ever did.

Certificate lifecycle risk is now an operational continuity problem, not just a cryptographic one. Shorter certificate validity periods reduce exposure but increase the odds of renewal failure, inconsistent ownership, and avoidable outage. This is especially important in distributed environments where many teams touch the same trust fabric. The practical conclusion is that PKI governance now needs process discipline, monitoring, and accountability at the same level as any core production service.

Connected devices expand the identity estate into places traditional IAM models were never built to govern. Device trust spans manufacturing, deployment, operation, and retirement, which means a single provisioning event is not enough to establish durable security. The article’s logic aligns with OWASP-NHI and NIST-CSF thinking: if the device lifecycle is unmanaged, the trust model is incomplete. Practitioners should treat device identity as a governed lifecycle, not a technical afterthought.

Digital trust is becoming the common language between human IAM, NHI governance, and secure infrastructure operations. The same enterprise now has to govern people, machine identities, and connected assets under one trust model. That does not mean one control set fits all, but it does mean lifecycle governance, auditability, and continuous verification have to be consistent across identity types. The implication for security leaders is that fragmented ownership will leave trust gaps at the seams between teams.

From our research:

• 69% of security leaders agree identity management must fundamentally shift to address agentic AI systems, according to The 2026 Infrastructure Identity Survey.
• Only 13% of organisations feel extremely prepared for the reality of agentic AI despite the majority racing toward autonomous adoption.
• That shift is part of a broader governance pattern discussed in Ultimate Guide to NHIs , 2025 Outlook and Predictions.

What this signals

Digital trust is becoming the operating model for identity programmes that have outgrown the perimeter. If your controls still assume a trusted internal network, you are already carrying hidden risk across cloud workloads, devices, and machine identities. The practical signal is to restructure governance around ownership, auditability, and renewal rather than around network zones.

Only 1.5 out of 10 organisations are highly confident in securing NHIs, according to The State of Non-Human Identity Security. That confidence gap matters here because perimeter-less environments multiply the number of identities that have to be provisioned, monitored, and retired. Teams should expect PKI and device identity management to become board-visible controls, not just infrastructure tasks.

Identity blast radius: As trust spreads across users, services, and devices, failures in certificate or lifecycle governance no longer stay local. They propagate into authentication, integrity, and operational continuity, which means security leaders need cross-team ownership before the next renewal cycle turns into an incident.

For practitioners

• Inventory trust-bearing identities across the estate Catalogue users, servers, devices, certificates, and machine-to-machine identities under a single ownership model so the enterprise can see where trust is created, delegated, and retired.
• Tie certificate renewal to operational monitoring Assign renewal alerts, escalation paths, and service ownership to every certificate class so expiration risk is detected before production services fail.
• Extend lifecycle governance to connected devices Define enrolment, update, revocation, and retirement controls for device identities, including how brownfield and greenfield devices are authenticated together.
• Use zero trust to remove location-based trust shortcuts Require explicit authentication and policy enforcement for access to networks, applications, and services instead of relying on internal network placement.
• Document ownership across PKI and device trust workflows Record who owns issuance, renewal, revocation, logging, and remediation for each trust domain so operational gaps do not hide between infrastructure teams.

Key takeaways

• The collapse of the corporate perimeter pushes identity, PKI, and device lifecycle governance into the main security control plane.
• Shorter certificate lifetimes and more connected assets raise operational risk unless ownership, renewal, and revocation are tightly governed.
• Enterprises need one trust model across users, machines, and devices, or they will keep creating gaps between policy and enforcement.

Key terms

• Digital Trust: Digital trust is the set of controls that prove identities, preserve integrity, and secure communications when a network perimeter can no longer define what is trusted. It combines identity governance, cryptographic assurance, lifecycle control, and monitoring across users, devices, services, and software.
• Certificate Lifecycle: Certificate lifecycle is the end-to-end management of a certificate from enrolment through renewal, revocation, and retirement. In perimeter-less environments, it is an operational trust process, because missed renewal or revocation can become an access failure or an outage.
• Connected Device Identity: Connected device identity is the cryptographic and governance model used to recognise and control devices that join enterprise systems. It covers provisioning, secure communication, monitoring, updateability, and retirement, and it must work across both brownfield and greenfield device estates.
• Zero Trust: Zero trust is an access model that assumes no inherent trust based on network location or prior connectivity. Every request is verified with identity, policy, and context, which makes it especially relevant when enterprise boundaries are distributed across cloud, devices, and services.

Deepen your knowledge

NHI governance, machine identity security, and secrets management are core topics in our NHI Foundation Level course, the industry's only accredited NHI security programme. If you are building or maturing an identity security programme, it is worth exploring.

This post draws on content published by DigiCert: Digital trust for the perimeter-less enterprise. Read the original.