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| Metal keys: bulky to carry around and easy to misplace or have stolen. If a key is lost on campus, it can be used by anyone who finds it. To prevent this occurrence, the lock must be changed and new keys issued to students and staff. If a master key is lost by a staff member, a whole series of locks and keys must be changed. Both scenarios cost time and money. | Keys can be unsafe for another reason as well. Often when locks are changed on a campus, the lock cores and keys are kept and used on other doors on campus, so a lost or stolen key might still grant a person access to another area on campus. | ||
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