One Badge Swipe Can Let Two People Inside: Why Tailgating Is a Building Security Risk
Access control systems are important for commercial buildings, offices, mixed-use properties, and restricted facilities. They help track who enters a building and when they enter.
But there is one common security gap that technology alone may not stop: tailgating.
Tailgating happens when one authorized person uses their badge, key card, or access pass to open a door, and another person follows behind without scanning their own credential.
The access system may record the badge, but not the unauthorized person entering behind them.
What Is Tailgating?
Tailgating is a form of unauthorized entry.
It can happen when someone holds the door open for another person, when a stranger walks in behind an employee, or when a person follows a group through a secured entrance.
Sometimes it looks harmless. But for building security, it can create serious risks.
Why Tailgating Is a Problem
A perfect access log does not always mean everyone inside was authorized.
If only one person scanned their badge, the system may only show one approved entry. But if another person followed behind, the building may now have someone inside who was not properly checked.
This can put tenants, employees, visitors, equipment, property, and restricted areas at risk.
Access Control Needs Human Support
Badge systems, cameras, locked doors, and visitor logs are helpful. But they work best when supported by trained security officers.
Security guards can help monitor entry points, observe behavior, verify visitors, remind people not to hold doors open, and respond when someone enters without proper access.
For related Churchgate guidance, read: Why Access Control Is Important for Commercial Buildings
How Security Officers Help Reduce Tailgating
Professional security officers help strengthen access control by watching the physical entry process.
They can support:
- Lobby monitoring
- Visitor check-ins
- Badge verification
- Door monitoring
- Restricted area protection
- Suspicious activity reporting
- Staff and tenant safety
- Quick response when needed
This helps close the gap between electronic access records and real physical entry.
Building Security Should Not Rely on Badges Alone
Access control technology is useful, but it should not be the only layer of protection.
CISA explains that access control is an important part of protecting facilities and managing who can enter certain areas. You can review their security planning resources here: CISA Commercial Facilities Resources
Choose Churchgate Protective Services
Churchgate Protective Services provides professional security support for commercial buildings, offices, mixed-use properties, hotels, banks, events, shelters, construction sites, and other high-traffic environments.
From access control and lobby monitoring to visible patrols and rapid response, our trained officers help protect people, property, and daily operations.
Contact Churchgate Protective Services
Churchgate Protective Services
747 Lexington Ave. Suite 1
Brooklyn, NY 11221
Phone: (718) 498-5960
Email: info@churchgatecorp.com
Protect your building beyond the badge swipe.