Executive summary — Non-human identities now vastly outnumber people in most enterprises, yet few organisations govern their full lifecycle. Identities that are created freely but never retired become a growing attack surface. This guide explains how to provision, manage and deprovision machine identities at scale, and why lifecycle governance is now central to security. Every workload, service, container, script and automated agent needs an identity to authenticate, and those identities have multiplied far faster than human accounts. In many enterprises, machine and other non-human identities outnumber people by a wide margin, often many times over. The risk is not the number itself but the lack of lifecycle control around it. Non-human identities are frequently created on demand and then forgotten, leaving orphaned credentials and over-permissioned workloads. Industry analysis through 2026 consistently ranks non-human identity sprawl among the top enterprise security risks. The lifecycle gap behind NHI sprawl Human identities follow a familiar lifecycle: joiner, mover, leaver. Non-human identities often have no equivalent discipline. They are provisioned quickly to keep projects moving, but deprovisioning rarely happens with the same urgency. The result is accumulation. Credentials outlive the workloads they served, service accounts keep permissions no one reviews, and secrets linger in code and configuration long after they should have been rotated or revoked. Identities created on demand but never retired. Orphaned credentials tied to decommissioned workloads. Over-permissioned service accounts that escape review. Secrets embedded in code and pipelines without rotation. What lifecycle governance means for machines Governing the non-human identity lifecycle means applying the same rigour to machines that mature programmes apply to people: controlled provisioning, continuous oversight, and reliable deprovisioning when an identity is no longer needed. Done well, this converts an unbounded, unmanaged population into a tracked inventory where every identity has a known owner, purpose, scope and expiry. Provisioning and deprovisioning at scale Manual processes cannot keep pace with machine identity volumes. Lifecycle governance therefore depends on automation at both ends of the lifecycle. Automated, policy-based provisioning Identities should be issued automatically against policy, with least-privilege scope and a defined validity, rather than being created ad hoc with broad, permanent rights. Short lifetimes and rotation Favouring short-lived credentials and automated rotation limits the value of any single compromised identity and reduces reliance on static, long-lived secrets. Reliable deprovisioning When a workload is retired, its identity must be retired with it. Tying deprovisioning to infrastructure changes prevents the orphaned-credential problem at its source. Ready to bring non-human identity sprawl under control? Talk to eMudhra. Why certificate-based identity helps Many of the strongest machine-identity models are built on certificates rather than static secrets. A certificate binds an identity to a key with a defined validity, which naturally enforces expiry and supports rotation. That makes certificate lifecycle management a close partner to non-human identity governance: managing the certificates is, in large part, how machine identities are provisioned, renewed and retired at scale. What to look for in machine identity lifecycle governance When comparing approaches to non-human identity, the strongest options close the lifecycle gap end to end rather than only cataloguing what already exists. Automated, policy-based provisioning with least-privilege scope. Short-lived credentials and automated rotation by default. Deprovisioning tied to infrastructure changes so identities retire with workloads. Support for certificate-based identity to reduce static secrets. A unified inventory where every identity has a known owner, purpose and expiry. How eMudhra supports machine identity at scale eMudhra brings together identity and certificate management to help organisations govern non-human identities across their lifecycle. CertiNext provides certificate lifecycle management for the certificate-based identities that secure workloads, while SecurePass extends identity governance across the enterprise. By automating provisioning, favouring short-lived credentials and ensuring identities are retired with the workloads they served, eMudhra helps enterprises bring non-human identity sprawl under control. Frequently Asked Questions What is a non-human identity? A non-human identity is the identity used by a workload, service, application, container, script or automated agent to authenticate, as opposed to a human user account. Why is non-human identity sprawl a problem? Non-human identities are often created freely but never retired, leaving orphaned credentials and over-permissioned workloads that expand the attack surface. What does lifecycle governance involve? It means controlled, policy-based provisioning, continuous oversight with least privilege, and reliable deprovisioning when an identity is no longer needed. How do short-lived credentials help? Short lifetimes and automated rotation limit the value of any compromised identity and reduce dependence on static, long-lived secrets. How do certificates relate to machine identity? Certificates bind an identity to a key with a defined validity, so certificate lifecycle management is a practical way to provision, renew and retire machine identities at scale. Govern machine identities with eMudhra eMudhra helps enterprises provision, manage and retire non-human identities at scale with CertiNext and SecurePass. Talk to the team about taming machine identity sprawl. Get started: https://emudhra.com/en/contact-us Tags: Machine & Agentic Identity About the Author eMudhra Limited eMudhra Editorial represents the collective voice of eMudhra, providing expert insights on the latest trends in digital security, cryptographic identities, and digital transformation. Our team of industry specialists curates and delivers thought-provoking content aimed at helping businesses navigate the evolving landscape of cybersecurity and trust services with confidence.