Every safe would have a replaceable locking/fire-setting mechanism with a part, machined to uniquely fit that particular safe, and stamped with the builder's gu

Every safe would have a replaceable locking/fire-setting mechanism with a part, machined to uniquely fit that particular safe, and stamped with the builder's guarantee of security. The important points are these: the mechanism-replacement machine wouldn't be limited to that one safe, and the technician won't install it unless Apple Safes said that it had the same level of security after the alteration. This isn't cracking one safe; it's developing (easily redistributable) instructions for cracking all the safes of that model and marking the modified mechanisms as unmodified, against their will.