What is IGA? Identity governance for the modern enterprise

One of the most fundamental security challenges in today's complex digital landscape is ensuring the right people have the right access to the right resources, and only for as long as they need it. This is the core problem that Identity Governance and Administration (IGA) solves.

Despite its importance, IGA is often misunderstood and underutilized. Legacy platforms are known for being costly, complex to deploy, and difficult to maintain — an “IGA tax” that keeps many organizations from fully implementing an IGA solution. Some cloud providers and identity vendors now offer "IGA Light" in response, but these limited offerings cover only basic needs, leaving significant gaps.

Modern enterprises require IGA solutions that are both highly functional and practically usable. This guide outlines what IGA is, how it works, its importance, and its evolution to address current identity security challenges.

What is identity governance and administration?

Identity governance and administration (IGA) comprises processes, policies, and tools that manage user access across an organization’s digital environment. At its core, IGA addresses three key questions:

1. Does this person still need this access?

2. Is the level of access still appropriate for their current role?

3. Has this access been used recently, or is it dormant?

IGA addresses major identity management challenges, including privileged access, appropriate employee access, management of developer and admin accounts, and regular user access reviews. It supports the principle of least privilege by ensuring users have only the access required for their roles.

The core problem IGA addresses

Access sprawl poses a significant risk for organizations. Without regular reviews, excessive permissions accrue: employees accumulate unnecessary permissions, contractors retain access after projects end, and service accounts multiply without oversight. In fact, over 95% of multi-cloud permissions remain unused, increasing the attack surface for potential threats.

Traditional identity and access management (IAM) tools are designed as gatekeepers to system access. Their core focus is on the front end of the access lifecycle: onboarding new identities and giving users needed access. IGA covers the full access lifecycle, ensuring ongoing appropriateness of access through continuous governance, compliance reporting, and intelligent remediation.

We explore the differences between IGA and IAM here.

Key components of IGA

Modern IGA platforms typically include several interconnected capabilities:

Access certifications (user access reviews)

Access certifications are formal, periodic reviews where managers and business owners confirm users have appropriate access. Intelligent IGA provides context, such as recent usage, peer comparisons, role changes, and review history. This transforms access reviews from routine compliance tasks into informed security decisions.

Role management

IGA allows organizations to define, maintain, and enforce role-based access control (RBAC). Grouping permissions by role reduces complexity and ensures consistency. When users change roles, their access is updated automatically, preventing accumulation of outdated permissions.

Separation of duties (SoD) controls

Certain access combinations present significant risk through potential conflicts of interest. For example, one individual should not both approve invoices and process payments. IGA platforms detect and prevent such conflicts, reducing fraud risk and supporting compliance with regulations such as SOX and HIPAA.

Compliance reporting

IGA produces audit-ready reports that show access is regularly reviewed, documented, and appropriate. These reports are vital for regulatory compliance (SOX, HIPAA, PCI DSS, ISO 27001) and demonstrate a strong defensible security posture during audits.

Provisioning and deprovisioning

IGA automates the process of granting access to new users and removing access when users leave or change roles. This reduces the time gap between an employee's departure and the full revocation of their access.

IGA vs. IAM: Understanding the difference

Many organizations confuse IGA with IAM, often using the terms interchangeably. While related, they serve different purposes.

Identity and Access Management (IAM) is the gatekeeper. It controls whether a user can access a system by managing authentication (proving who you are) and authorization (what you're allowed to do). IAM answers: "Should this person be allowed in?"

Identity Governance and Administration (IGA) is the auditor. It ensures access remains appropriate over time through continuous reviews, compliance monitoring, and remediation. IGA answers: "Should this person still have access?"

In summary, IAM acts as the lock on the door, while IGA ensures the right individuals have keys and are using them appropriately.

In practice, modern identity security requires both. IAM controls immediate access decisions. IGA ensures those decisions remain valid and compliant as roles, responsibilities, and organizational structures evolve.

We explore IGA vs IAM in more detail here. 

IGA use cases by industry

IGA delivers value across a range of industries and use cases.

IGA for financial services

Banks and financial institutions must comply with strict regulations (SOX, PCI DSS, SEC cybersecurity disclosure rules). IGA ensures regular review and documentation of access to customer data, payment systems, and trading platforms. Separation of duties controls help prevent fraud, while audit-ready reports demonstrate compliance to regulators.

IGA for healthcare

Healthcare organizations are required to protect patient data under HIPAA and other regulations. IGA ensures clinical staff have appropriate access to electronic health records (EHRs), promptly revokes access when employees leave, and maintains auditable records. These measures are essential for breach prevention and compliance.

IGA for technology and SaaS

Technology companies often face challenges managing non-human identities such as service accounts, API keys, and developer access with elevated privileges. IGA offers visibility into these machine identities, enforces least-privilege principles, and identifies dormant or orphaned accounts that may pose security risks.

IGA for enterprise IT

Large enterprises with hybrid environments often have fragmented identity data across multiple systems. IGA consolidates this information, offering unified visibility into access across platforms. This is essential for managing access in complex, multi-platform environments.

IGA for third-party management

Organizations frequently grant access to contractors, consultants, and suppliers. IGA ensures these external users are provisioned correctly, their access is regularly reviewed, and they are promptly offboarded when engagements conclude.

Modern IGA challenges

Despite the clear need for IGA, organizations encounter significant challenges with implementation and adoption.

Legacy IGA's burden

Traditional IGA platforms require extensive customization, professional services, and time to deploy. Implementation often takes 18 months or longer. They're expensive to implement and maintain, creating the "IGA tax" that causes many organizations to delay or abandon governance initiatives. This leaves critical access risks unmanaged.

"IGA Light" limitations

Cloud providers and identity vendors now offer simplified IGA features such as basic access reviews, compliance reporting, and simple provisioning. While these solutions are less expensive and faster to deploy, they are limited to a single ecosystem, lack cross-platform visibility, offer limited analytics, and often depend on manual processes that result in incomplete reviews and offboarding.

Fragmented identity data

Most organizations store identity and access data across various systems, including identity providers, SaaS applications, cloud platforms, on-premises systems, HR databases, and custom applications. Manual consolidation is time-consuming, error-prone, and often incomplete, leaving reviewers without the necessary context for informed decisions.

Review fatigue

Managers often rush through approvals when faced with lengthy, unclear permission lists lacking context. This rubber-stamping undermines access reviews and leaves inappropriate access in place. Reviewers require clear, contextual information to make informed decisions.

Compliance documentation burden

Compiling compliance evidence from multiple systems is manual, stressful, and increases operational overhead. Organizations often struggle to demonstrate that access is regularly reviewed, documented, and appropriate.

How IGA supports identity security

IGA forms the foundation of a comprehensive identity security posture. While IAM manages access decisions at the point of entry and IGA ensures access remains appropriate over time, identity security goes further by introducing usage-aware visibility: understanding not only who has access but how they are actually using it.

Identity security addresses key questions: "Who is accessing systems, what are they doing, and does this activity pose a risk?" This requires understanding permissions and actual usage patterns to determine whether activity is typical or suspicious.

This shift reflects a fundamental change in the threat landscape. Attackers now primarily exploit identity through compromised credentials, credential stuffing, phishing, and identity-based attacks. The security perimeter is now defined by identity instead of traditional boundaries.

Non-human identities such as service accounts, API keys, bots, and AI agents compound this challenge. Machine identities now outnumber human identities in most enterprises, often have elevated privileges, and are frequently overlooked in access reviews. They are increasingly targeted by attackers because they are easier to compromise and often less protected than human accounts.

Identity Security Posture Management (ISPM) completes the identity security program by continuously discovering, monitoring, assessing, and remediating identity security effectiveness. It shifts the focus from simply having controls to ensuring those controls are properly configured, maintained, and effective. ISPM provides an aggregate view of how effectively your identity infrastructure protects the organization: "Are we actually secure?"

Together, IGA and ISPM establish a comprehensive identity security program. IGA governs appropriate access, while ISPM ensures access is used securely and appropriately through detection and remediation.

The Evolution of IGA: From Legacy Burden to Modern Practice

The identity governance market is evolving as organizations move away from the "IGA tax" of legacy platforms toward new and more modern solutions. The concept of the “IGA tax” is discussed in greater detail within this recent blog by Garrett Bekker, Principal Research Analyst covering Identity and Access Management with S&P Global 451 Research.

Modern IGA requires:

• Rapid out-of-the-box deployments that deliver value in weeks, not months
• Low total cost of ownership (TCO) through simplified architecture and reduced professional services
• User-aware context that provides reviewers with usage patterns, peer comparisons, risk signals, and dormancy indicators
• Cross-platform visibility across hybrid environments, multiple clouds, on-premises systems, and SaaS applications
• Operational scalability that grows with your organization without exponential cost increases
• AI/ML automation that handles manual workflows: access requests, provisioning, deprovisioning, and review preparation

This evolution reflects the need for governance solutions that are effective, scalable, and manageable. Organizations are no longer willing to accept the complexity and cost of legacy systems or the limitations of simplified alternatives.

Getting Started with IGA

If your organization is evaluating IGA or seeking to enhance your current approach, consider the following questions:

1. Do you have visibility into all user access across your environment? Can you answer who has access to what, where, and why?
2. How often do you review access? Are reviews happening regularly, or only when compliance audits require them?
3. Do reviewers have the context they need? Can they see usage, peer comparisons, and recent role changes?
4. How long does offboarding take? Can you revoke access in minutes, or does it take weeks?
5. Are you compliant? Can you generate audit-ready reports demonstrating that access is regularly reviewed and appropriate?

If your organization faces challenges with access sprawl, compliance reporting, or identity management across hybrid environments, Oleria can assist. Our intelligent IGA platform provides unified visibility and context-aware recommendations without the complexity and cost of legacy solutions.

We support security teams, IT directors, and business managers in implementing scalable governance. Whether you are beginning your IGA journey or seeking to replace legacy platforms, Oleria offers the visibility, automation, and compliance readiness required.

Contact Oleria to discuss how to strengthen your identity security posture. Schedule a demo to see modern IGA in action.

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