Key Cybersecurity Tips for Networked Access Control

In today’s connected world, access control systems are no longer isolated hardware—they’re networked, cloud-based, and often integrated with other IT systems. This connectivity provides powerful management and monitoring tools but also introduces new cybersecurity vulnerabilities. Understanding how to protect your RFID proximity card system and networked access devices is essential for maintaining security and compliance.

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1. Secure the Network First

Your access control system’s backbone is your network. Every controller, reader, and software connection relies on it.
To prevent unauthorized access:

• Place access control devices on a dedicated VLAN.
• Use firewall rules to restrict traffic to known IP ranges.
• Keep firmware and software updated to patch vulnerabilities quickly.

2. Encrypt Communication Between Devices

Modern access systems support encrypted communication between readers, controllers, and management platforms.
Ensure your RFID proximity card readers and controllers use AES or TLS encryption to prevent card data interception.
Unencrypted systems, especially older 125 kHz readers, can be easily cloned or spoofed if data isn’t protected in transit.

3. Use Strong Authentication for Admin Access

Your networked access system should require:

• Complex passwords
• Two-factor authentication (2FA) for administrative logins
• Role-based permissions

By limiting who can change access rules or view cardholder data, you significantly reduce insider threats.

4. Protect the RFID Credential Lifecycle

Even though RFID proximity cards are convenient, they can be cloned if improperly managed. To improve security:

• Use cards that support unique facility codes and encrypted serials.
• Deactivate lost or stolen cards immediately.
• Periodically audit your credential database to remove inactive users.

For the highest protection, consider migrating to smart credentials that use 13.56 MHz encrypted technology.

5. Integrate Access Control with Cyber Monitoring

If your organization already monitors IT systems with tools like intrusion detection systems (IDS), integrate access control into that framework. Suspicious login attempts, duplicate card reads, or unexpected access times can all indicate potential compromise.

6. Conduct Regular Penetration Testing

Annual or semi-annual security audits can reveal hidden vulnerabilities.
Third-party penetration testers can evaluate both your RFID proximity card environment and the supporting network infrastructure to identify risks before attackers exploit them.

7. Maintain Vendor and Firmware Compliance

Always download updates directly from your manufacturer’s portal—never from third-party sources.
Set automated update schedules for your readers and controllers when supported. A single outdated component can expose your entire access control network.

Conclusion

Networked access control provides immense flexibility and convenience, but cybersecurity vigilance is vital.
From securing VLANs to encrypting card data and using strong credentials, these proactive steps protect your facility and data from modern threats.