NIST CSF PR.AC-3: Remote Access Management
Remote access is a critical attack surface that demands structured controls. PR.AC-3 requires your organization to implement policies and technical measures that govern who can connect remotely, how they authenticate, and what they can access. Without proper remote access management, you expose sensitive data and systems to unauthorized users.
What this means
PR.AC-3 mandates that remote access to systems and data is restricted, monitored, and authorized. This means establishing clear policies for remote work, enforcing strong authentication (like MFA), limiting access based on job role, and maintaining audit logs of all remote connections. The control applies whether employees work from home, travel, or use third-party networks.
How to comply
- 1.Document a remote access policy that defines authorized use cases, approved devices, and acceptable networks.
- 2.Implement multi-factor authentication (MFA) for all remote access endpoints.
- 3.Configure role-based access controls (RBAC) to limit remote users to only necessary systems and data.
- 4.Deploy VPN or zero-trust network access solutions to encrypt and authenticate remote sessions.
- 5.Enable centralized logging and monitoring of all remote access attempts and activities.
- 6.Conduct quarterly reviews of active remote access accounts and revoke unused credentials.
- 7.Require endpoint security (antivirus, encryption, firewall) on all devices used for remote access.
- 8.Establish session timeout policies and automatic disconnection after inactivity.
Evidence auditors look for
- Remote access policy document signed by management
- MFA enrollment records and configuration screenshots from identity provider
- VPN or zero-trust platform configuration and active user list
- Access control matrix showing remote user permissions by role
- Remote access audit logs with timestamps, user IDs, and connection details
- Endpoint security scan reports for remote devices
- Access review sign-off templates and completed quarterly reviews
- Session timeout policy documentation and technical implementation proof
Frequently asked questions
When will FAQs be available?
The FAQ for this control is currently being prepared.
GRCWatch automates remote access audits by mapping user identities to active sessions in real-time, flagging policy violations, and generating quarterly compliance reports—eliminating manual access reviews.
See how GRCWatch handles this control automatically
Start free trial