Certificate management now spans cloud, devices and user identity

At a glance

What this is: This is a certificate management overview showing that certificates now underpin cloud, API, device, code-signing and identity workflows, not just web security.

Why it matters: It matters because IAM, IGA, PAM and machine identity teams need to govern certificate lifecycle, access scope and auditability across far more systems than traditional TLS estates.

By the numbers:

• 69% of security leaders agree identity management must fundamentally shift to address agentic AI systems.
• 70% of organisations grant AI systems more access than they would give a human employee performing the exact same job.

👉 Read eMudhra's article on the widening scope of certificate management

Context

Certificates are no longer just web server credentials. In modern environments they authenticate workloads, secure APIs, protect container traffic, support code signing and extend trust into user authentication flows, which turns certificate management into an identity governance problem as much as a cryptography problem.

That broader scope changes how security teams should think about lifecycle control. When certificates sit inside cloud, IoT, IAM and software delivery pipelines, the real risk is not only compromise but unmanaged sprawl, inconsistent ownership and weak auditability across different identity types.

Key questions

Q: How should security teams govern certificate-based authentication for machines and devices?

A: Security teams should govern certificates as identities with owners, lifecycles, and revocation triggers, not as static configuration files. That means linking issuance to approved use cases, enforcing expiry and renewal, and revoking certificates when a device, vendor, or system is retired. Without lifecycle control, certificate-based authentication can preserve stale trust instead of reducing risk.

Q: Why do certificates create governance problems when they spread across many systems?

A: Certificates create governance problems because trust is easy to issue but hard to track. As certificates spread across cloud, IoT, software release and authentication workflows, organisations often lose sight of who owns them, where they are used and whether they are still valid. That is a lifecycle and accountability issue, not only a security settings issue.

Q: What do security teams get wrong about code signing lifecycle management?

A: The common mistake is treating certificates as one-time setup items instead of governed assets with issuance, renewal, rotation, and revocation requirements. When inventory is incomplete, stale certs linger and policy enforcement becomes inconsistent. That creates hidden trust debt across development teams and regions.

Q: What is the difference between certificate encryption and certificate governance?

A: Encryption protects data in transit or at rest, while governance controls who can issue, use, rotate and revoke certificates. A certificate can be technically strong and still create risk if ownership is unclear or the lifecycle is unmanaged. Governance is what keeps trust from becoming sprawl.

Technical breakdown

Certificate lifecycle management across cloud and workloads

Certificate management becomes operationally difficult when the same trust primitive is used across websites, cloud applications, APIs, containers and microservices. Each certificate has an issuer, a subject, a validity period and revocation dependencies, which means lifecycle failures create both availability and identity risk. In distributed environments, short-lived workloads and service-to-service authentication increase renewal pressure and make manual tracking unrealistic. The issue is not just storage, but knowing which certificate belongs to which workload, who owns it and when it must be rotated or retired.

Practical implication: Map every certificate to an owner, workload and expiry date before it becomes an orphaned trust dependency.

Code signing certificates and software integrity

Code signing certificates prove that software has not been altered after publication and that a package came from a trusted signer. If these certificates are mishandled, stolen or left insufficiently governed, attackers can sign malicious code that appears legitimate to users and downstream systems. This makes code signing part of software supply chain trust, not just developer convenience. The certificate lifecycle therefore needs strict issuance controls, hardware-backed key protection, revocation readiness and clear separation between build identities and release approval processes.

Practical implication: Treat code signing keys as high-value identities and separate signing authority from general developer access.

Certificates as an IAM and compliance control

The article is right to connect certificates with IAM and compliance because certificate-based authentication is often used where passwords are too weak or too easy to phish. Certificates can strengthen authentication for users, services and devices, but only if issuance, renewal, revocation and reporting are auditable. GDPR and similar obligations do not make certificates a standalone compliance cure, yet they do make secure transmission, traceability and control evidence essential. Governance failure usually appears as weak ownership rather than weak encryption.

Practical implication: Align certificate reporting with identity and audit workflows so compliance evidence shows ownership, rotation and revocation.

Threat narrative

Attacker objective: The attacker aims to inherit trusted identity so malicious traffic, code or device activity is accepted as legitimate.

1. entry: Attackers often begin by targeting certificate material, signing keys or trust paths that let them impersonate legitimate systems or package malicious code as trusted software.
2. escalation: Once a trusted certificate or signing identity is abused, the attacker can move through authenticated channels that bypass ordinary trust checks and inherit the certificate's legitimacy.
3. impact: The result is software tampering, unauthorized service access, device impersonation or broad trust compromise across systems that rely on the certificate chain.

Breaches seen in the wild

• MongoBleed breach — MongoBleed exposed secrets across 87K MongoDB servers.
• IOS app secrets leakage report — iOS apps leaking hardcoded secrets and credentials endangering user privacy.

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

NHI Mgmt Group analysis

Certificate management is now an identity governance problem, not a narrow PKI task. The article correctly shows that certificates authenticate workloads, APIs, devices and people, which means lifecycle control now spans multiple actor types. That broad scope pushes certificate governance into IAM, IGA and machine identity operations rather than leaving it inside a technical crypto team. Practitioners should treat certificate ownership, renewal and revocation as identity controls, not asset housekeeping.

Certificate sprawl creates an ownership problem before it becomes a cryptography problem. When certificates are issued across cloud, IoT, code signing and user authentication flows, the main failure mode is often not weak encryption but unclear responsibility for issuance, rotation and retirement. That is a classic governance gap because expiry and trust chains are only useful if the organisation can map them back to accountable systems and teams. Practitioners should focus on inventory fidelity and lifecycle accountability first.

Code signing is a privileged identity control, not a developer convenience feature. Software signing certificates confer trust at distribution time, which means misuse can turn a normal release path into a supply chain attack path. This is where NIST CSF and OWASP NHI thinking meet: identity trust must be explicit, auditable and bounded by change control. Practitioners should place signing authority under privileged governance and separate it from routine build access.

Identity blast radius: one unmanaged certificate can now affect multiple trust domains at once. A certificate used for workload auth, API access or software signing can propagate trust far beyond the team that issued it. That makes the impact of expiry, compromise or misuse larger than many teams model today. Practitioners should design for blast-radius containment, not isolated certificate administration.

Compliance evidence depends on lifecycle proof, not just encryption claims. The article links certificates to GDPR and audit reporting, which is directionally correct because regulators care about control evidence and data protection outcomes. In practice, teams need to prove who owns a certificate, when it changes state and how revocation is enforced. Practitioners should build reporting around lifecycle events, not generic policy statements.

From our research:

• 67% of organisations still rely heavily on static credentials despite the risks they pose to agentic AI deployments, according to The 2026 Infrastructure Identity Survey.
• 54% of organisations describe certificate and secret lifecycle ownership as fragmented across teams, according to the NHI Lifecycle Management Guide.
• Ultimate Guide to NHIs , Lifecycle Processes for Managing NHIs shows why issuance, rotation and offboarding need one governance model.

What this signals

Identity blast radius: certificate sprawl behaves like workload sprawl, which means the programme risk is not only more objects but more trust paths that need ownership. Security teams should expect certificate governance to move closer to IAM and machine identity operations as cloud, IoT and software release pipelines converge.

With 88.5% of organisations acknowledging their non-human IAM practices lag behind or only match their human IAM efforts, per the 2024 Non-Human Identity Security Report, the gap is not conceptual. Teams that still treat certificates as a separate PKI concern will miss the governance pressure coming from lifecycle ownership, auditability and privileged trust.

For practitioners

• Build a complete certificate inventory Track every certificate by owner, workload, issuer, expiry date and revocation path across cloud, APIs, devices and software delivery systems.
• Separate code signing from general build access Restrict signing keys to dedicated approval flows and protect them with hardware-backed storage, tight audit logging and explicit release governance.
• Align certificate renewal with identity governance Connect certificate renewal, rotation and retirement to IAM and IGA workflows so orphaned certificates do not outlive the systems they authenticate.
• Treat certificate reporting as audit evidence Produce reports that show certificate ownership, lifecycle status and revocation readiness for compliance and internal control testing.

Key takeaways

• Certificates now govern workloads, devices, software releases and user authentication, so certificate management has become an identity governance discipline.
• The biggest risk is often ownership drift and lifecycle sprawl, not encryption failure, because trust is easy to issue and hard to govern at scale.
• Practitioners should tie certificate inventory, renewal, rotation and revocation into IAM and audit processes before trust paths become unmanageable.

Key terms

• Certificate Lifecycle Management: The process of issuing, tracking, renewing and revoking certificates across their usable life. In practice, it is a governance function because unmanaged lifecycle events create identity risk, outage risk and audit gaps even when the underlying cryptography remains sound.
• Code Signing Certificate: A code signing certificate is a digital credential used to prove that software came from a trusted publisher and has not been altered. In identity terms, it is a non-human identity that authorizes release activity, and its value depends on lifecycle control, key custody, and revocation discipline.
• Machine Identity: A digital identity used by a non-human system such as a workload, device, service or application component. Certificates often anchor machine identity, which means governance must cover issuance, ownership, rotation and revocation just as carefully as human access.
• Certificate Sprawl: Certificate sprawl is the uncontrolled growth of certificates across systems, services, and environments. It creates operational risk because each certificate becomes another trust object that can expire, duplicate, or remain unowned, making outages and governance failures more likely.

What's in the full article

eMudhra's full article covers the operational detail this post intentionally leaves for the source:

• How emSign CertHub maps certificate workflows across websites, cloud applications, APIs and IoT devices.
• The vendor's description of automation, granular control and reporting for certificate lifecycle operations.
• The source's own explanation of how certificate management integrates with IAM and compliance reporting.
• The article's examples of how businesses can apply certificate management across security, governance and audit use cases.

👉 eMudhra's full post covers the broader certificate lifecycle, IAM integration and compliance context.

Deepen your knowledge

NHI governance, machine identity security, and identity lifecycle 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.