There are two ways to manage lost keys: proactively and reactively. When programmed, keys can be set to expire. These expirations are flexible and can be set according to specific security requirements: hourly, daily, weekly, or monthly expirations are common examples. When a key with a near-term expiration is lost, no action may be required. When a key with a long-term expiration is lost, creating unacceptable risk exposure, vulnerable locks can be reprogrammed in order to load the lost key ID into the lock memory and prevent that key from working.
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