Guide · 2 articles
Identity and Access Management (IAM) Security Guide
Identity and Access Management (IAM) security is the discipline of ensuring the right people have the right access to the right resources at the right time. With identity now the primary attack vector, IAM encompasses MFA, SSO, privileged access management, zero trust identity, and access governance.
Andreas Johansson · Chief Executive Officer
Senior IT management leader with 25 years of experience in Cloud, Security, and Datacenter infrastructure.
Identity Is the New Perimeter
The traditional network perimeter — firewalls, VPNs, and network segmentation — is dissolving. Cloud adoption, remote work, SaaS proliferation, and mobile access mean users and systems access resources from everywhere. The network boundary no longer defines the security boundary.
Identity has become the new perimeter. Every access decision — to applications, data, infrastructure, and services — is now an identity decision. Who is requesting access? Are they who they claim to be? Are they authorized for this specific action? Is this behavior consistent with their normal patterns?
Organizations that secure identity effectively can operate securely regardless of network location. Organizations that don't will find that firewalls and VPNs provide diminishing protection as workloads move to the cloud and users work from anywhere.
What Is Identity and Access Management?
Identity and Access Management (IAM) is the discipline of ensuring the right people and systems have the right access to the right resources at the right time — and that this access is continuously verified, monitored, and governed.
IAM encompasses:
Identity management. Creating, managing, and deactivating digital identities for users, services, and devices. This includes provisioning (granting access when someone joins), modification (adjusting access as roles change), and deprovisioning (removing access when someone leaves).
Authentication. Verifying that someone is who they claim to be. This ranges from passwords to multi-factor authentication to biometrics to certificate-based authentication.
Authorization. Determining what an authenticated identity is allowed to do. Role-based access control (RBAC), attribute-based access control (ABAC), and policy-based access control define and enforce permissions.
Privileged access management. Securing and monitoring high-privilege accounts — administrators, service accounts, and any identity with elevated permissions that could cause significant damage if compromised.
Identity governance. Ensuring access rights are appropriate, compliant, and regularly reviewed. Access certifications, segregation of duties, and audit trails provide governance and compliance evidence.
Why Identity Security Matters
Identity Is the Top Attack Vector
The majority of breaches involve compromised credentials. Attackers don't need to exploit software vulnerabilities or bypass firewalls — they log in with stolen, phished, or guessed credentials. Once authenticated, they have the same access as the legitimate user.
Identity threats and credential attacks include phishing, credential stuffing, password spraying, token theft, and social engineering — all targeting identity as the path of least resistance.
Cloud and SaaS Amplify Identity Risk
In on-premises environments, identity was one layer of defense alongside network controls. In cloud and SaaS environments, identity is often the only control. A compromised cloud identity can access resources directly from anywhere — no network penetration required.
Regulatory Requirements
GDPR, HIPAA, SOX, PCI DSS, and NIS2 all require access controls, least privilege, audit trails, and periodic access reviews. IAM is not optional — it's a compliance requirement.
The IAM Security Stack
Authentication Layer
Multi-factor authentication is the foundation. Passwords alone are insufficient — they're phished, stuffed, sprayed, and guessed. MFA adds verification factors that are significantly harder to compromise.
Single sign-on centralizes authentication, reducing password fatigue and providing a single point for enforcement of strong authentication policies.
Authorization Layer
Authorization determines what authenticated users can do. Effective authorization follows least privilege — users have only the permissions necessary for their current role, no more.
IAM vs PAM clarifies the relationship between general access management and the specialized discipline of securing privileged accounts.
Governance Layer
Identity governance and administration ensures access rights remain appropriate over time through access reviews, role management, and compliance reporting.
Zero Trust Layer
The zero trust identity model assumes no identity is trusted by default. Every access request is verified based on identity, device, location, behavior, and risk — regardless of network position.
Building an IAM Security Program
- Inventory identities. Know all user accounts, service accounts, and system identities across all environments
- Enforce MFA. Deploy multi-factor authentication on all user access, prioritizing administrative and sensitive access
- Implement least privilege. Review and reduce permissions to the minimum necessary
- Secure privileged access. Deploy PAM for administrative accounts with session monitoring and just-in-time access
- Centralize authentication. Implement SSO to reduce credential sprawl and enforce consistent policies
- Establish governance. Regular access reviews, automated provisioning/deprovisioning, and compliance reporting
- Monitor continuously. Detect anomalous authentication patterns, impossible travel, and unusual access behaviors
How SeqOps fits
SeqOps connects read-only to your AWS, Azure and Google Cloud accounts and reports access risks alongside vulnerabilities and misconfigurations, each ranked from Critical to Informational. Your identity resources are part of its cloud inventory. It doesn't manage identities or monitor sign-ins.