Privileged Access Management refers to the discipline of securing, controlling, and monitoring all forms of non-human and human privileged access to critical resources. A privileged account is one that has permissions beyond those of a standard user. These accounts can perform administrative tasks, change system configurations, access sensitive data, and install/uninstall software. They represent the "keys to the kingdom" of an organization’s critical infrastructure.
PAM is considered a foundational control because privileged accounts represent the highest-value target in any environment. A privileged access management solution enforces the principle of least privilege, ensuring users are granted only the minimum access necessary, for the shortest time required.
The core of PAM is to enforce the principle of least privilege, which dictates that users—whether human, application, or process—should only be granted the minimum access necessary to perform their specific job function, and for the shortest time required.
Types of privileged accounts:
PAM in cybersecurity covers several distinct account types, each carrying different risk profiles:
Shared/Service Accounts: Non-personal accounts used by multiple administrators or applications, often with high-level access
Domain/Local Administrator Accounts: Accounts with full administrative control over a server, workstation, or domain.
Application Accounts: Accounts used by applications or services to access other systems, databases, or cloud services. These often include embedded passwords or API keys.
Emergency/Break-Glass Accounts: Highly privileged accounts used only during emergencies or when standard administrative access methods fail.
Human Administrator/Elevated Accounts: Personal user accounts that can be temporarily elevated to perform administrative tasks.
Why is Privileged Access Management (PAM) important?
The importance of PAM stems directly from the significant risk posed by these privileged accounts. A single compromised privileged credential can allow an attacker to move laterally across the network, steal intellectual property, disrupt operations, or encrypt data for ransom.
Key reasons for PAM's importance:
Minimizing the Attack Surface: By enforcing the principle of least privilege, PAM drastically reduces the number of users and endpoints with permanent, high-level access. This limits an attacker's ability to escalate privileges if a standard account is compromised.
Compliance and Auditing: Numerous regulations (like GDPR, HIPAA, SOX, and PCI DSS) mandate strict controls and auditing over access to sensitive data and systems. PAM provides the necessary logging, session recording, and reporting to prove compliance to auditors.
Preventing Insider Threats: Malicious or negligent insiders with privileged access can cause massive damage. PAM monitors all privileged sessions in real-time and maintains an immutable audit trail, acting as a deterrent and providing forensic evidence.
Stopping Lateral Movement: If an attacker gains access to one server, PAM ensures they cannot simply use the cached privileged credentials on that machine to jump to the next one, effectively stifling their progress.
Securing the Cloud: As organizations migrate to the cloud (AWS, Azure, GCP), PAM extends its reach to manage cloud consoles, APIs, and access keys, which are often the most sensitive credentials an organization possesses.
