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Category: Privileged Access

Privileged Session Management

Also known as: PSM, Privileged Session Manager
Simply put

Privileged Session Management (PSM) is a security capability that controls, monitors, and records the activities of users with elevated access to sensitive systems and data. It helps organizations ensure that only authorized people can perform privileged actions, and it keeps a record of what they did during those sessions.

Formal definition

Privileged Session Management (PSM) is a capability within privileged access management (PAM) that focuses on controlling, monitoring, recording, and auditing privileged sessions to sensitive systems and data. In typical deployments it enables the ability to initiate, monitor, and record privileged sessions and administrative usage, supporting oversight of authorized privileged users and their activities. As described in the evidence, PSM addresses runtime session control and auditing of privileged access; the specific mechanisms for authenticating the underlying privileged user, and for authorizing which resources they may reach, depend on the broader PAM and access control configuration and are not fully specified by the term itself.

Why it matters

Privileged accounts represent some of the highest-value targets in any environment because they grant elevated access to sensitive systems and data. Without controls over how privileged sessions are initiated and conducted, an organization has limited ability to distinguish legitimate administrative work from misuse, whether by an insider or an attacker who has compromised privileged credentials. Privileged Session Management (PSM) reduces this exposure by controlling, monitoring, and recording privileged activity so that elevated access is exercised only by authorized users and in a way that can be reviewed.

The recording and auditing dimension of PSM is what makes privileged activity accountable after the fact. Because PSM keeps a record of what was done during a session, it supports forensic investigation, incident response, and compliance oversight. This matters in most regulated environments, where demonstrating who accessed which sensitive system and what they did is a recurring requirement rather than a one-time exercise.

It is important to be precise about scope: PSM addresses runtime session control and auditing of privileged access. It does not, by itself, fully specify how the underlying privileged user is authenticated or how the resources they may reach are authorized; those steps depend on the broader PAM and access control configuration. PSM should therefore be understood as one capability within a larger privileged access management program rather than a complete access control solution on its own.

Who it's relevant to

IAM and PAM engineers
Engineers who design and operate privileged access management platforms are responsible for deploying PSM capabilities that initiate, monitor, and record privileged sessions. They must integrate PSM with the surrounding authentication and authorization controls, since PSM addresses session control and auditing but does not fully specify how the privileged user is authenticated or which resources they may reach.
Security architects
Architects position PSM within a larger PAM program, treating it as a runtime session control and auditing capability rather than a standalone access control model. They define how PSM complements the mechanisms that authenticate privileged users and authorize their access to sensitive systems.
Compliance officers and auditors
Because PSM records and audits privileged sessions, compliance and audit staff rely on it to demonstrate oversight of authorized privileged users and their activities. The retained session records support review of what was done during access to sensitive systems and data.
System administrators
Administrators with elevated access are the users whose sessions PSM controls, monitors, and records. Understanding that their privileged activity is captured for auditing purposes is relevant to how they perform administrative work on sensitive systems.
Incident response teams
Responders can use the records produced by PSM to reconstruct privileged activity during and after a session, supporting forensic investigation of potential misuse or compromise of privileged access.

Inside PSM

Session Brokering / Proxy
PSM typically routes privileged connections (for example RDP, SSH, or database sessions) through an intermediary gateway so that the end user does not connect directly to the target. This proxy layer allows credentials to be injected without exposing them to the operator, depending on configuration.
Credential Injection and Vault Integration
PSM commonly integrates with a privileged credential vault to retrieve and inject secrets into the session at connection time, so the human user need not know the underlying password. This is an authorization-and-secrets-handling concern for the session, distinct from verifying the operator's own identity.
Session Recording and Monitoring
PSM solutions typically capture session activity, such as keystrokes, commands, or video/screen recordings, for audit and forensic purposes. The scope and fidelity of recording varies by protocol and vendor.
Real-Time Session Control
Many deployments support live monitoring with the ability to pause, terminate, or lock an active privileged session when suspicious activity is detected. This is a runtime enforcement capability rather than a lifecycle/governance function.
Isolation of the Endpoint
By interposing a proxy, PSM can isolate the target system from the operator's workstation, which is intended to reduce the risk of malware traversing from the endpoint to sensitive infrastructure, depending on the deployment architecture.
Audit Trail and Attribution
PSM generates records that tie a specific authenticated individual to actions taken during a shared or privileged account session, supporting accountability and compliance reporting.

Common questions

Answers to the questions practitioners most commonly ask about PSM.

Is Privileged Session Management the same as Privileged Access Management (PAM)?
No. PSM is typically one capability within a broader PAM program, not a synonym for it. PAM generally encompasses credential vaulting, secrets management, just-in-time access, and privileged account lifecycle concerns, whereas PSM focuses specifically on establishing, brokering, monitoring, recording, and terminating the interactive sessions in which privileged access is exercised. In most deployments PSM depends on other PAM components, such as a credential vault, to inject credentials without exposing them to the user.
Does session recording in PSM handle authentication or authorization decisions?
No, those are distinct steps that typically occur before or alongside the session rather than being performed by the recording function itself. Authentication verifies who the requesting principal is, and authorization determines whether that principal may access the target and what they may do there; these are usually enforced by upstream identity and policy components. PSM's recording and monitoring capabilities observe and capture the session activity for accountability and audit purposes. Depending on configuration, PSM may also enforce runtime controls such as command filtering or session termination, but the recording itself is an oversight function, not an access decision.
How does a PSM proxy typically prevent users from seeing the credentials used to access a target?
In most deployments PSM operates as an intermediary proxy or jump host that brokers the connection so the user never directly holds the target credential. The PSM component typically retrieves the secret from an associated credential vault and injects it into the session on the user's behalf, so the user authenticates to the PSM layer while the PSM layer authenticates to the target. The exact injection mechanism varies by protocol and vendor, and some configurations may still expose credentials in edge cases, so verifying isolation behavior against your specific targets is advisable.
What deployment options exist for routing privileged sessions through PSM?
Common patterns include a gateway or proxy model, where sessions are routed through a dedicated broker, and an agent-based or jump-server model. Depending on the product, PSM may support protocol-specific proxies (for example, for RDP, SSH, or database or web-based administrative access). Choosing among these typically involves trade-offs around network topology, whether endpoints can accept agents, latency, and how completely you can enforce that direct connections bypassing the PSM path are blocked. Enforcing that bypass prevention, often through network segmentation or firewall rules, is generally as important as the PSM configuration itself.
What controls can PSM typically enforce during an active privileged session?
Depending on configuration and product capability, PSM may support real-time monitoring, keystroke or command logging, command filtering or blacklisting/whitelisting, session pausing, and administrative or automated session termination. Some deployments allow a reviewer to observe or join a live session and intervene. The granularity of these controls often varies by protocol; command-level filtering, for example, is typically more feasible for text-based protocols like SSH than for graphical sessions, where controls may be coarser.
How should PSM session recordings be handled for audit and retention?
Session recordings are typically retained as audit artifacts to support accountability, forensic investigation, and compliance reviews. Practical considerations include storage volume (graphical session recordings can be large), retention periods aligned to applicable policy or regulatory requirements, tamper-evidence or integrity protection of stored recordings, and access controls governing who may review them. Because recordings may capture sensitive data displayed during a session, in most deployments they warrant protection, such as encryption at rest and restricted access, commensurate with the sensitivity of the systems recorded. Specific retention durations and legal requirements are out of scope here and should be determined by your governance and compliance teams.

Common misconceptions

PSM authenticates the privileged user.
PSM is primarily concerned with controlling, recording, and enforcing what happens during a privileged session (an authorization and monitoring concern). The identification and authentication of the operator is typically handled by upstream mechanisms such as an IdP, MFA, or the broader PAM platform, and should be treated as a separate step.
PSM and privileged credential/password vaulting are the same thing.
They are related but distinct functions. Credential vaulting stores and manages secrets, while PSM governs the live connection, brokering, injecting credentials, monitoring, recording, and terminating sessions. Many products bundle both, but conceptually they address different problems.
Session recording guarantees complete visibility into everything a user did.
Recording coverage depends on protocol, configuration, and vendor implementation. Encrypted channels, unsupported protocols, or command-level versus screen-level capture can all create gaps, so completeness should not be assumed.

Best practices

Require strong authentication (for example MFA) of the individual operator upstream before a privileged session is brokered, keeping identity verification separate from the PSM session-control layer.
Integrate PSM with a credential vault so that secrets are injected into sessions without being disclosed to operators, and rotate credentials used for injection where supported.
Enable session recording and, where the protocol allows, command-level logging to preserve an attributable audit trail tied to the specific person using a shared or privileged account.
Configure real-time monitoring with the ability to alert on, pause, or terminate anomalous sessions rather than relying solely on after-the-fact review.
Use the proxy/isolation architecture to prevent direct operator-to-target connections, reducing exposure of target systems to the operator's endpoint where the deployment supports it.
Scope PSM coverage explicitly, documenting which protocols and targets are and are not subject to recording and control so that visibility gaps are known rather than assumed.
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