Security is compromised.
Well, an ingenious one comes from the Virginia Polytechnic Institute and State University , which had a key-distribution problem a few years ago. His department is now using two different techno-gatekeepers. The reader records the date and time an individual enters the shop. If a key goes missing, Edwards and his staff have a list of people who were in the shop. You log onto the system and request keys by entering key IDs found in a paper-based building index.