HOW THE ATTACK WORKS
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Exploiting internal relationships: Former employees leverage their connections with service personnel, who usually have wide-ranging access, to obtain access cards temporarily.
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Using cloning technology: Access card data can be cloned within seconds with a smartphone app and low-cost devices.
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Returning the original card: The card is returned after copying to avoid raising suspicion.
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Gaps in deactivation: In some buildings, management doesn't promptly deactivate returned cards, or the system lacks real-time validation. The cloned version may still work if the original card is deactivated.
WHY THIS THREAT IS SERIOUS
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Hard to detect: Since cloned cards mimic legitimate ones, access logs show them as authorized entries.
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Abuse of trusted roles: Service units enjoy broad access with minimal oversight.
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Ongoing vulnerability: Cloned cards can be kept and used anytime, long after creation.
SECURITY SOLUTIONS FOR BUSINESSES AND BUILDING MANAGEMENT
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Real-time credential validation
Ensure your access control system checks each scan against an up-to-date database in real time. Any deactivated card or its clone should be denied access immediately. -
Use encrypted smart cards or dynamic mobile credentials
Replace magnetic stripe cards with encrypted smart cards or use mobile credentials that refresh dynamically (OTP, rotating QR codes). -
Monitor and analyze access logs.
Deploy software to detect anomalies like off-hours access, use of deactivated credentials, or duplicate entries from multiple devices. -
Restrict service provider access
Limit access areas and times for third-party vendors. Issue single-use or short-duration credentials that auto-expire. -
Train building management staff
Train staff to:-
Immediately deactivate returned cards.
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Recognize suspicious return behaviors.
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Report anomalies to security or tenant companies.
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Conduct regular security audits
Perform biannual security checks to identify weaknesses, including penetration testing to simulate real-world attacks. -
Use write-once access card
Adopt RFID or smart cards that only allow data to be written once, preventing unauthorized overwriting or duplication. -
Quarterly card recall and master card rotation
Collect and replace all access cards every quarter, and issue a new master key system while revoking all prior permissions to eliminate hidden risks. -
Implement multi-factor authentication
In sensitive zones, combine card access with biometrics or photo ID verification for an additional layer of security.
Cloning access cards presents a real and evolving threat, but it is preventable. By adopting multi-layered security protocols and staying proactive, both businesses and building managers can significantly reduce risk. In an era where every card is potentially cloneable, robust preparation is the key to avoiding undetectable breaches.
