If you want stringent key control at the consumer level, I've found a good one in Abloy's Protec2 system, with a Ruby Abloy dealer. Under that system, an exclus

If you want stringent key control at the consumer level, I've found a good one in Abloy's Protec2 system, with a Ruby Abloy dealer. Under that system, an exclusive key blank is manufactured and made only available to a specific dealer. No other Abloy dealer is able to get that blank. [1] Put a Drumm Geminy Shield in front of a Protec2 cylinder to put a long delay on typical hand-held destructive attacks against the cylinder, or force an attacker to bring in heavy equipment to break the lock, and most attackers will opt for either softer targets or a brick through the window. That key system also lets you do the usual key control designing, like a master key that opens everything, and a loaner key that only opens the front door, for example. Like any security system, you will want defense in depth, and have other layers protecting other aspects. [1] http://lockwiki.com/index.php/Abloy_Protec http://lockwiki.com/index.php/Abloy_Protec