In today’s digital world, physical security is no longer enough to protect a business or building. As access control systems become smarter and more connected, they also become more vulnerable to cyber threats. What used to be a simple keycard system can now include cloud dashboards, mobile apps, biometric scanners, and internet-connected devices—all of which create new cybersecurity risks.
At XTEN-AV, we help organizations design secure, scalable access solutions that are protected both physically and digitally. In this blog, we explain why cybersecurity is essential for any Access Control System and share practical steps to help you strengthen your defenses.
Why Cybersecurity Matters for Access Control
An Access Control System is responsible for securing your building by allowing or denying entry to people based on identity. But if the system itself is compromised, hackers could unlock doors, disable locks, erase access logs, or even steal user data.
Cyber threats are no longer limited to large corporations. Small businesses, schools, hospitals, and even residential buildings are all at risk. In many cases, attackers do not target the building—they target weak network links or outdated software that control physical security.
Common Cybersecurity Threats
Understanding the types of risks that exist is the first step toward defending your system. Here are some of the most common cybersecurity threats to an Access Control System:
1. Weak Passwords and Default Credentials
Many systems come with pre-set admin passwords. If not changed, these can be easily found online and exploited.
2. Outdated Software or Firmware
Older software versions often have known vulnerabilities that hackers can exploit. Regular updates are essential.
3. Unsecured Network Connections
If your access system is connected to the internet without proper firewalls or encryption, it becomes an easy target.
4. Lost or Stolen Credentials
Lost cards or leaked mobile credentials can be used to gain unauthorized access if not revoked quickly.
5. Insider Threats
Disgruntled employees or unauthorized users inside the building can misuse credentials or exploit system loopholes.
Steps to Secure Your Access Control System
Protecting your system does not require a cybersecurity expert on staff. With some planning and regular checks, you can build a strong defense for your system.
Step 1: Change Default Login Credentials
Always update default usernames and passwords during installation. Use complex passwords with a mix of letters, numbers, and symbols. Avoid using easily guessable combinations like “admin123” or “password2025”.
Step 2: Enable Two-Factor Authentication
Use two-factor authentication (2FA) for system administrators and users with elevated access rights. This adds an extra layer of protection by requiring a second form of verification, such as a text message code or authentication app.
Step 3: Keep Software and Firmware Updated
Manufacturers release updates to fix bugs and patch security flaws. Schedule monthly checks to ensure your access control software, controller firmware, and any connected devices are fully updated.
Step 4: Segment Your Network
Avoid connecting your Access Control System to the same network used for guest Wi-Fi or public internet access. Create a dedicated VLAN (virtual local area network) to isolate your access devices from general traffic.
Step 5: Use Data Encryption
Ensure all communication between readers, control panels, and cloud servers is encrypted using secure protocols like HTTPS or SSL. This prevents hackers from intercepting or tampering with data.
Step 6: Monitor Access Logs for Suspicious Activity
Review system logs regularly. Watch for:
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Multiple failed login attempts
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Unusual access hours
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Repeated use of expired credentials
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Access from unfamiliar IP addresses
These may signal attempted breaches or compromised accounts.
Step 7: Limit User Permissions
Not every user needs access to every part of the system. Create user roles with limited permissions. Only IT admins or security officers should have access to system settings and user management tools.
Step 8: Revoke Lost or Inactive Credentials
When an employee leaves the company or loses their access card or phone, immediately remove or disable their credentials. Use automated tools to deactivate accounts that are not used for extended periods.
Step 9: Conduct Cybersecurity Training
Train your staff on basic cybersecurity practices. Teach them to:
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Recognize phishing emails
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Avoid sharing credentials
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Use secure passwords
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Report suspicious activity quickly
Your security is only as strong as the people using the system.
Step 10: Perform Annual Security Audits
Conduct a formal audit of your Access Control System each year. Review user lists, permissions, network configurations, and software versions. You can also hire a third-party expert to conduct penetration testing or vulnerability assessments.
Future-Proofing Your System
As cyber threats continue to evolve, your system must be flexible enough to adapt. Here are a few ways to prepare for the future:
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Choose cloud-based systems with built-in security updates and remote monitoring
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Invest in biometric solutions that are harder to duplicate or share
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Integrate with security platforms that combine video surveillance, alarms, and access control in one interface
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Automate response actions such as alerts, lockdowns, or credential revocation
XTEN-AV offers solutions that are designed with cybersecurity in mind, helping you stay one step ahead of threats while maintaining a smooth, secure user experience.
Final Thoughts
Cybersecurity is no longer just an IT concern—it is a critical part of your overall security strategy. A compromised Access Control System can open the door to physical theft, data breaches, and serious legal or financial consequences.
By following the steps outlined in this guide, you can protect your system from digital threats and ensure your building remains safe and secure.
At XTEN-AV, we help clients deploy access systems that are not only smart and scalable but also cyber-resilient. Whether you are upgrading an old system or building from scratch, we are here to support you with expert design, implementation, and protection.
