Common Master Key Vulnerabilities
Master keys introduce several vulnerabilities that can compromise the security of your community. These include:
• Failure to Rekey After Construction or Renovations: During construction or renovation, contractors may use master keys to access various areas of the property. If these keys are not properly secured or replaced afterward, residents remain at risk.
• Unapproved Duplication: A “Do Not Duplicate” stamp on a key doesn’t guarantee that unauthorized copies won’t be made. If someone is determined enough, they will find a way to duplicate the key.
• Unauthorized Access: Master keys increase the chances of unauthorized access, especially in high-rise buildings where maintenance staff and service providers need frequent access to different units. Without a reliable access log to track key usage, these risks are heightened.
It’s important to note that as smart locks (also known as digital locks or keyless entry systems) become more popular, they too can present security vulnerabilities. While smart locks offer advanced features, a single code, fob, or access card programmed to grant access to an entire building or community can present similar risks to those of master keys. Therefore, whether using traditional keys or digital systems, it’s essential to carefully manage and monitor access.
How to Improve Key Control Practices
To protect your community, implement the following key security best practices: Rekey When Necessary
If your community has recently undergone a construction project where workers had access to master keys or if a master key has gone missing, it’s important to rekey the locks.
Notify Residents
Whether your community uses a master key system or keeps a copy of each homeowner’s or resident’s key on file, it’s important to let them know. Keep them informed about how you’ll secure keys, who has access to them, and what circumstances warrant use of those keys. Whenever a key is removed for the purpose of accessing someone’s home, notify them ahead of time.
Create a Clear Key Control Policy
To hold keyholders accountable, create a clear key control policy detailing which employees, board members, vendors, and contractors are authorized to use which keys, when, and why. Update these guidelines at routine intervals, such as when a property manager resigns, a new board member is elected, or a resident moves in or out.
n, s, such d member 52 | COMMON INTEREST® • Summer 2025 • A Publication of CAI-Illinois Chapter Secure Keys
Avoid storing keys in areas such as a desk drawer or on a pegboard in an open area. Ideally, store keys in an electronic key control system, which is a secure, automated solution consisting of a tamper-resistant cabinet, drawer, or wall-mounted panel. High-rise buildings with multiple access points and amenity areas might require more than one system strategically located throughout the property. For cramped front desk areas, look into compact key control systems with drawers designed to tuck neatly underneath.
Maintain Up-to-Date Key Control Logs
Every time someone checks out or returns a key, it’s important to document details such as the user, date, time, checkout reason, and return time. Using an electronic key control system to create an electronic log minimizes the possibility for human error or records falsification, since the system records each transaction instantly. If a key goes missing or there are allegations of misuse, this audit trail is invaluable.
Choose the Right Key Control Solution
To secure keys, implement an electronic key control system that’s practical for daily use, while offering security features such as:
• Secure, tamper-proof storage
• User authentication through fingerprint identification or other secure method
• User profiles to set different access levels
• Resident notifications when a key to their unit is checked out
• Alerts for overdue keys and other security issues
• Attached security camera to record videos of each transaction
• Automatically captured record of when keys are checked out and returned
• Key control reports to monitor key activity and identify potential security concerns
By understanding the risks associated with master keys, you can take proactive steps to secure them. Begin by implementing an electronic key control system to establish a clear audit trail and prevent unauthorized access. This investment not only enhances your community’s safety but also safeguards property values and strengthens trust with residents. Help make the good ol’ summertime – and every day – more secure at your community association.
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