Leaving a spare key under the doormat or on top of a doorframe is never a good idea. A dedicated lock box for your spare keys allows you to provide entry to others when you’re not around—like dog ...

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A key lock box is a secured storage crafted to protect keys. It is designed to offer effortless accessibility to those who are permitted while limiting access to those who are not authorized.

Marc Weber Tobias and two colleagues discovered that they could create plastic keys to open Medeco's M3 high-security locks, despite key control measures designed to thwart key duplication. Photo: ...