3.10.3: Always Escort Visitors and Monitor Their Movement

What Is NIST 800-171 Control 3.10.3?

Control 3.10.3 ensures that visitors to secure areas are escorted at all times by authorized personnel, their activities are monitored, and their presence is documented and limited to what is necessary.

This applies to:

• Vendors
• Contractors
• Clients
• Guests or non-employees entering restricted zones

Why It Matters

Visitors—even well-intentioned ones—can pose a risk if left unsupervised. Without proper escorting and oversight, they may:

• See, photograph, or overhear sensitive information
• Plug in unauthorized devices
• Access or tamper with systems

Escorting prevents unintentional breaches and insider threat scenarios.

How to Implement Control 3.10.3

• Require check-in procedures for all visitors
• Issue temporary badges that clearly indicate visitor status
• Assign a host or escort responsible for the visitor throughout their stay
• Prohibit photography or system access unless explicitly approved
• Log visitor names, times, purpose, escort, and areas visited

Common Mistakes

• Allowing visitors to roam unsupervised “just for a few minutes”
• Failing to document who escorted the visitor
• Not reviewing or purging visitor access logs regularly

How Cuick Trac Helps

Cuick Trac reinforces Control 3.10.3 by:

• Minimizing in-person access needs through its secure cloud enclave
• Providing guidance on visitor control policies and escort procedures
• Offering templates for visitor sign-in logs, escort assignments, and visitor policies
• Supporting training efforts for frontline staff and security personnel

With Cuick Trac, visitors stay guests—not risks.

When it comes to CUI, there’s no such thing as “just looking around.”
Book a Cuick Trac demo and lock down your visitor procedures today.