SFIC cores are a type of interchangeable lock. An operating key opens the door and a special key called a control key removes the lock core from the the lock itself – without needing to disassemble the lock.
The ability to remove the new old lock and put a new one in has several advantages. 1) a property owner can rekey their on locks instantly. 2) the locks are high quality and very hard to pick 3) the keys are not easily to duplicate. 4) it takes a lot less time to switch over a large facility, say, 30 plus doors.
Some people find it hard to understand how SFIC locks work. That makes sense until you demonstrate it. It almost looks like magic.
While thinking about SFIC systems I realized something interesting. Traditional keys offer savings but you need a locksmith to change them. Electronic Access control is more expensive but users can add and eliminate users quickly. SFIC systems are really the middle ground between these two systems.