NIST 800-171 Control 3.1.12: Remote Access Monitoring
Remote access is essential for modern operations, but it introduces significant security risks. Control 3.1.12 requires organizations to actively monitor and control remote access sessions to detect unauthorized activity and maintain visibility over sensitive system access. Without proper monitoring, attackers can exploit remote connections to move laterally through your network.
What this means
This control mandates that you establish and maintain real-time visibility into all remote access sessions connecting to your systems. You must implement monitoring mechanisms that log session initiation, user identity, access duration, and activities performed during each session. The control requires both passive monitoring (logging and auditing) and active controls (session termination capabilities, idle timeouts, and suspicious activity detection) to prevent unauthorized or malicious remote access from compromising your information systems.
How to comply
- 1.Deploy remote access logging that captures session start/end times, user identifiers, source IP addresses, and connection duration
- 2.Establish baseline profiles of normal remote access patterns to identify anomalous behavior
- 3.Configure automated alerts for suspicious activities including multiple failed login attempts, off-hours access, or unusual geographic connections
- 4.Implement session timeout policies and idle disconnection mechanisms to limit exposure from unattended sessions
- 5.Conduct regular reviews of remote access logs at least monthly to identify policy violations or security incidents
- 6.Maintain audit trails with sufficient detail to support forensic investigation and demonstrate compliance
- 7.Define and document remote access monitoring procedures in your security policy
Evidence auditors look for
- Remote access monitoring tool configuration screenshots showing active logging and alerting rules
- System logs demonstrating session monitoring for VPN, SSH, RDP, or other remote protocols
- Monthly remote access audit reports with findings and remediation actions documented
- Security policy documentation defining remote access monitoring requirements and responsibilities
- Incident response logs showing how suspicious remote access sessions were detected and handled
- Session timeout policy configurations on remote access servers and appliances
- Monitoring alert logs showing detection of policy violations or suspicious patterns over 90-day period
Frequently asked questions
When will FAQs be available?
The FAQ for this control is currently being prepared.
GRCWatch automatically ingests logs from your VPN, cloud, and on-premises systems to centralize remote access monitoring, flag policy violations in real-time, and generate audit reports that satisfy 3.1.12 evidence requirements without manual log review.
See how GRCWatch handles this control automatically
Start free trial