PAM vs IAM vs IGA: What Is the Difference and Which Do You Need?

Identity-related attacks are responsible for over 80% of data breaches, yet many organizations still struggle to clearly distinguish between Privileged Access Management (PAM), Identity and Access Management (IAM), and Identity Governance and Administration (IGA). These three disciplines overlap, complement each other, and are often confused, leading to either redundant investments or critical gaps. This guide provides the clearest possible distinction between the three, and a framework for deciding which to prioritize and in what order.

The One-Sentence Definitions

• IAM, Controls who gets access to what, and how they authenticate.
• PAM, Controls and monitors what privileged users (admins, service accounts, APIs) can do with elevated access.
• IGA, Governs the lifecycle of access, who should have what access, whether they still need it, and whether it complies with policy.

The simplest analogy: IAM is the front door (who gets in), PAM is the vault room (what high-risk areas are locked down separately), and IGA is the audit committee (reviewing who has keys and whether they should).

Identity and Access Management (IAM), The Foundation

IAM is the base layer of any identity security program. It manages:

• Authentication: Verifying identity through passwords, MFA, biometrics, or certificate-based authentication
• Single Sign-On (SSO): Allowing users to authenticate once and access multiple applications
• Directory services: The authoritative source of user identities (Active Directory, Azure AD / Entra ID, Okta, Ping)
• Access provisioning: Granting or revoking access to applications when users join, move, or leave
• Federation: Extending identity across organizational boundaries using SAML, OAuth, OIDC

Who are the IAM vendors? Microsoft Entra ID (formerly Azure AD), Okta, Ping Identity, ForgeRock, OneLogin. Most enterprises already have an IAM solution, it is the most mature of the three categories.

IAM alone is insufficient because: It authenticates and grants access but does not provide enhanced controls for high-risk privileged access, does not record what privileged users do after gaining access, and does not systematically review whether existing access grants remain appropriate.

Privileged Access Management (PAM), The Vault

PAM addresses the specific risk of privileged accounts, administrator accounts, service accounts, root credentials, API keys, and infrastructure secrets that have elevated permissions beyond what normal users have. These accounts are the primary target of sophisticated attackers because compromising one privileged account can grant access to an entire environment.

PAM controls privileged access through:

• Credential vaulting: Storing privileged credentials (passwords, SSH keys, API tokens) in an encrypted vault rather than in spreadsheets, configuration files, or developers' heads
• Just-in-time access: Granting elevated access only when needed for a specific task, then automatically revoking it, eliminating persistent privileged sessions
• Session recording: Recording everything a privileged user does during an elevated session for audit and forensic purposes
• Secrets management: Managing the API keys, service account credentials, and machine-to-machine secrets used by applications and automation
• Least privilege enforcement: Ensuring privileged accounts have only the specific permissions needed for their function, not unrestricted "super admin" access

Who are the PAM vendors? CyberArk (market leader, enterprise), Delinea (mid-market to enterprise), BeyondTrust, Saviynt, HashiCorp Vault (secrets management focus).

When PAM is the right priority: Organizations with a significant number of privileged accounts (Windows admins, database admins, DevOps teams with cloud infrastructure access), compliance requirements that mandate privileged access controls (PCI DSS, HIPAA, SOC 2, CMMC), or a history of insider threats or compromised admin credentials.

Identity Governance and Administration (IGA), The Audit Committee

IGA addresses a different problem: not "who can get in" but "who should have access and do they still need it?" Most organizations accumulate access entitlements over time, users get access when they join or change roles, but access is rarely systematically removed when it is no longer needed. This creates permission sprawl: former employees with active accounts, employees with access to systems from three job changes ago, and service accounts with permissions far exceeding their actual requirements.

IGA manages:

• Access request workflows: Formal processes for requesting, approving, and provisioning access, replacing informal email-based requests
• Role management: Defining and managing role-based access control (RBAC), grouping permissions into roles aligned with job functions
• Access certification campaigns: Periodic reviews where managers certify whether their direct reports still need their current access
• Segregation of duties (SoD): Detecting and preventing conflicts where a single user has access to incompatible functions (e.g. the same person who creates vendors also approves vendor payments)
• Orphan account detection: Identifying active accounts for users who have left the organization
• Compliance reporting: Generating audit evidence that access controls are being managed according to policy

Who are the IGA vendors? SailPoint (market leader), Saviynt, Omada, IBM Security Verify, Microsoft Entra ID Governance.

When IGA is the right priority: Organizations with compliance requirements (SOX, HIPAA, PCI) that mandate formal access reviews and SoD controls, companies that have grown rapidly through acquisition (accumulated access chaos), or organizations failing audit findings related to access control and user lifecycle management.

How PAM, IAM, and IGA Work Together

Capability	IAM	PAM	IGA
User authentication	✅ Primary	⚡ Enhanced (for privileged)	❌
Access provisioning	✅ Primary	⚡ Privileged only	✅ Governs
Privileged credential vaulting	❌	✅ Primary	❌
Session recording	❌	✅ Primary	❌
Access certification	❌	⚡ For PAM accounts	✅ Primary
SoD conflict detection	❌	❌	✅ Primary
Role-based access control	✅ Implementation	❌	✅ Governance
Orphan account management	⚡ Partial	⚡ Service accounts	✅ Primary

Which Should You Implement First?

For most mid-market enterprises, the prioritization is:

1. IAM first, if you do not have MFA on all systems and SSO for key applications, start here. This is the baseline.
2. PAM second, privileged account compromise is the most common path to catastrophic breach. If you have more than 10 people with admin rights and no vault, PAM is your highest risk.
3. IGA third, once access is being granted and controlled properly, govern it systematically. IGA is often required for SOX and SOC 2 compliance but is least urgent from a pure security standpoint.

The exception: if you are subject to SOX (public company) or are in a regulated industry with formal access certification requirements, IGA may move to #2.

TechCloudPro's cybersecurity practice designs and implements PAM, IAM, and IGA solutions for mid-market and enterprise clients, including CyberArk, Delinea, BeyondTrust, SailPoint, and Okta. We start with a free identity security maturity assessment to identify your highest-risk gaps and the most cost-effective path to remediation. Schedule your identity security assessment today.