Guide to Finding the Best Identity and Access Management Solutions
Identity and Access Management is the enforcement layer for zero-trust architecture. Every access decision — whether a user can authenticate, what resources they can reach, and under what conditions — flows through the IAM platform. When the IAM platform is compromised, as in the 2023 Okta support system breach and the ongoing wave of Okta push-bombing MFA bypass attacks, every downstream application inherits the exposure.
This guide is for security architects, IAM program leads, and enterprise architects selecting or replacing an IAM platform for workforce identity, customer identity (CIAM), or both. We cover the technical and operational criteria that determine whether an IAM platform improves security posture or introduces new risk: federation implementation quality, MFA strength and phishing resistance, identity lifecycle automation, and the governance controls that prevent access sprawl over time.
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Federation Standards: SAML, OIDC, and SCIM Depth
The value of an IAM platform is determined by how many applications it can federate with — and at what depth. Shallow federation (SSO login only) improves user experience but does not enable centralized access revocation or lifecycle automation. Deep federation (SSO plus SCIM provisioning plus attribute-based access control) enables the access governance controls that prevent former employees from retaining access.
Evaluate federation depth for your three most critical application categories: productivity SaaS (M365, Google Workspace, Salesforce, ServiceNow), developer tooling (GitHub, Jira, Confluence, AWS, Azure), and custom internal applications requiring SAML or OIDC integration.
Okta Integration Network has the broadest pre-built integration catalog in the market with over 7,000 applications. Microsoft Entra ID provides the deepest integration with Microsoft's ecosystem (M365, Azure, Intune, Defender) and is the correct choice for organizations standardized on Microsoft. Ping Identity and ForgeRock both provide stronger support for complex, custom federation requirements — particularly for organizations with legacy on-premises applications requiring advanced attribute mapping.
MFA Strength and Phishing Resistance
Push-based MFA (Okta Verify push notifications, Microsoft Authenticator push, Duo Push) is no longer sufficient as an enterprise MFA standard. Attackers bypass push MFA through push bombing (flooding users with approval requests until they accept), real-time phishing proxies (AiTM: adversary-in-the-middle proxies that relay authentication in real time and steal session tokens), and SIM-swapping attacks against SMS-based MFA.
The NIST SP 800-63B standard's AAL3 (the highest assurance level) and the CISA phishing-resistant MFA guidance both specify FIDO2/WebAuthn hardware tokens (YubiKey, Titan Key) or device-bound passkeys as the only phishing-resistant MFA mechanisms. Evaluate your IAM platform's support for these standards.
Okta FastPass with device trust provides a phishing-resistant authentication flow on enrolled, managed devices. Microsoft Entra ID FIDO2 support is mature and integrates with Windows Hello for Business for seamless passwordless authentication on managed Windows devices. All major IAM platforms support FIDO2 authentication for workforce users. The differentiator is ease of deployment at scale and fallback MFA policy management during the transition period.
Workforce vs. Customer Identity: CIAM Requirements
Workforce IAM and Customer Identity and Access Management (CIAM) have different architectural requirements. Workforce IAM manages a bounded set of known users (employees, contractors) with predictable access patterns and centralized IT administration. CIAM manages a potentially unlimited set of external customers with self-service registration, social login, consent management, and high-availability requirements.
If you need both use cases, evaluate vendors that provide a unified platform. Okta Customer Identity Cloud (powered by Auth0) is the strongest CIAM platform in the market, with the deepest developer SDK ecosystem and the most flexible authentication flow customization. Microsoft Entra External ID (formerly Azure AD B2C) is the correct choice for organizations standardized on Azure that need CIAM tightly integrated with their Azure infrastructure.
For workforce-only deployments, avoid paying the CIAM premium. Okta Workforce Identity, Microsoft Entra ID P2, and Ping Identity all provide enterprise workforce IAM without requiring the CIAM platform's higher cost and additional complexity.
Identity Governance and Lifecycle Automation
Access sprawl — where users accumulate permissions over time that exceed their current role requirements — is the most common IAM security failure that creates breach risk. Addressing it requires identity governance: automated access reviews, role-based access provisioning, and lifecycle workflows that remove access when employees change roles or leave the organization.
Evaluate lifecycle automation for: joiner workflows (how quickly is a new employee provisioned with the correct application access on day one?), mover workflows (when an employee changes departments, how automatically does access adjust?), and leaver workflows (when an employee's account is disabled in the IdP, how quickly is downstream application access revoked?). Test the leaver workflow explicitly by timing how long a test account retains access to critical applications after deprovisioning in the IdP.
Okta Lifecycle Management and Microsoft Entra ID Governance both provide strong automated lifecycle management. SailPoint IdentityNow is the specialized identity governance platform of choice for organizations with complex access review and certification requirements — it provides deeper role modeling and access review workflow than generalist IAM platforms.
The bottom line
Okta is the strongest standalone IAM platform for heterogeneous enterprise environments with broad SaaS integration requirements and mature CIAM needs. Microsoft Entra ID is the correct choice for Microsoft-centric enterprises that want the deepest M365, Azure, and Defender integration with minimal additional licensing cost. Ping Identity and ForgeRock are the right choices for large enterprises with complex legacy federation requirements, regulated industries requiring on-premises deployment options, or organizations requiring advanced API security governance. SailPoint complements any IAM platform for organizations that need mature identity governance and access certification capabilities beyond what their primary IAM vendor provides.
Frequently asked questions
What is the difference between authentication and authorization in IAM?
Authentication answers the question 'who are you?' — verifying that a user is who they claim to be through passwords, MFA, and device trust signals. Authorization answers the question 'what are you allowed to do?' — determining which resources an authenticated identity can access and at what permission level. IAM platforms handle authentication; access governance systems like SailPoint or Saviynt manage authorization at the role and permission level. Some IAM platforms provide both, but enterprises with complex authorization requirements typically require a dedicated identity governance tool.
How does IAM fit into a zero-trust architecture?
IAM is the identity plane of zero-trust. In a zero-trust model, access to every resource requires continuous verification — not just authentication at login time, but ongoing assessment of identity, device health, location, and behavior signals throughout the session. Continuous access evaluation (CAE), a capability supported by Okta, Microsoft Entra, and Ping, revokes or re-challenges session tokens in real time when risk signals change. This prevents an attacker who steals a session token from maintaining access after the legitimate user's device reports a security anomaly.
What is the most common IAM configuration mistake that leads to breaches?
The most common IAM breach enabler is legacy authentication protocol support — specifically, leaving Basic Auth, NTLM, and legacy protocols enabled in your IAM platform because some older applications require them. These protocols cannot enforce MFA, meaning attackers can bypass your entire MFA deployment by targeting applications that still accept username/password over these protocols. Audit all applications for legacy authentication protocol usage and block legacy protocols at the IAM layer after migrating applications to modern SAML/OIDC federation.
How should I handle IAM for non-human identities (service accounts, CI/CD pipelines)?
Non-human identities require workload identity federation rather than password-based service accounts. Modern approaches: GitHub Actions OIDC for CI/CD pipeline authentication to cloud providers (no static secrets), AWS IAM roles for service-to-service authentication within AWS, Kubernetes workload identity for pod-to-service authentication, and managed service identities (MSI) in Azure. Static service account credentials that do not rotate automatically are a persistent breach risk. Inventory all non-human identities in your environment and migrate them to workload identity federation or PAM-managed dynamic credentials.
Sources & references
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