Mastering Machine Identity Security: 5 Steps to Start Your ISPM Journey

The rapid adoption of agentic AI and automation-first architectures has transformed how organizations operate — and how they manage risk. Behind every intelligent agent, automated workflow, and API connection lies a growing ecosystem of non-human identities (NHIs) — service accounts, tokens, and machine credentials that authenticate, request access, and execute digital work on behalf of systems, not people.

According to CyberArk’s 2025 Identity Security report, machine identities now outnumber human ones by more than 80 to 1, and that figure is expected to grow by 150% in the next year. This explosion has led to what security teams are now calling machine identity sprawl — an uncontrolled proliferation of credentials that are rarely rotated, inconsistently governed, and frequently untraceable. Even more concerning, 68% of organizations admit they lack proper identity controls for AI-driven processes, leaving critical automation pipelines exposed.

An Identity Security & Privileged Management (ISPM) program provides the structured approach organizations need to regain control. It is the framework that brings visibility, governance, and automation to the world of machine identities. This article outlines five foundational steps — plus one essential pre-step — to kickstart your ISPM journey and tame the chaos.

Step 0: Plan the Plan — Define the “Why” Before the “How”

Every successful ISPM initiative starts with a clear objective. Before touching a single API key or revoking a service account, define the outcome you want: Are you preparing for an audit? Reducing breach risk? Or simply seeking visibility into your current machine identity landscape?

This phase sets the philosophical foundation — it aligns stakeholders, defines measurable success, and ensures your ISPM program is driven by purpose, not panic.

Step 1: Discover and Inventory Every Identity

You cannot secure what you cannot see. The first operational step is discovery — mapping every human and non-human identity across cloud, on-premises, and hybrid environments. This includes:

• Service accounts powering internal applications.
• API keys and tokens used for integrations.
• Secrets such as database credentials or embedded passwords.
• Certificates securing encrypted communications.

This discovery creates your master inventory — the cornerstone of ISPM visibility and governance.

Step 2: Assess Risks and Set the Rules

With visibility achieved, the next step is risk assessment — identifying where exposure is highest. Common risks include:

• Overprivileged access granted to service accounts.
• Unrotated secrets that have not changed in months or years.
• Stale or orphaned accounts left behind by deprecated services.
• Shared credentials reused across multiple systems.

A new and growing risk is the AI wildcard — autonomous models that self-generate requests or credentials, often outside centralized oversight. Local AI development adds another blind spot, as engineers run models on personal systems disconnected from enterprise policy.

Use these insights to establish security policies: mandate secret rotation, enforce least privilege, and define clear rules for AI identity use and data access.

Step 3: Secure and Remediate

This is the action phase — the cleanup. Based on your findings, prioritize immediate remediation:

• Deactivate unused or dormant accounts.
• Rotate outdated credentials and secrets.
• Remove excess permissions following least-privilege principles.
• Replace shared credentials with dedicated, traceable identities.

Each remediation strengthens your environment’s resilience, closing the most obvious and exploitable gaps.

Step 4: Automate Everything You Can

Manual identity management cannot scale to the pace of modern IT. Automation is the backbone of sustainable ISPM. Implement:

• Automated credential rotation aligned with policy intervals.
• Just-in-time (JIT) access, granting temporary privileges only when needed.
• Integrated security within CI/CD pipelines, ensuring new risks aren’t introduced during development.

Automation not only enforces consistency but also frees security teams to focus on strategy rather than firefighting.

Step 5: Monitor, Measure, and Stay Vigilant

An ISPM program is not a one-time project — it’s a continuous cycle. Establish ongoing monitoring for:

• Key metrics such as number of unmanaged NHIs and policy compliance rates.
• Anomalous activity that could signal compromised credentials.
• Policy updates reflecting evolving AI and DevOps environments.

Like daily hygiene, this constant vigilance ensures long-term security health and operational confidence.

The Road to Order

Machine identities are multiplying faster than most organizations can track. Without a defined ISPM framework, risk compounds silently. By following these steps — planning, discovering, assessing, remediating, automating, and monitoring — organizations can transform machine chaos into governed order.

The goal isn’t just control. It’s clarity.
When you manage your NHIs effectively, you don’t just reduce risk — you enable safe innovation, confident automation, and secure AI adoption at scale.