The term overlifting gets used in a number of contexts with respect to lockpicking and physical security. Before we delve into the topics contained within this chapter, a bit of disambiguation is in order.
At its core, the idea of overlifting pertains to raising or moving certain components farther than would be customary during regular operation or manipulation of a lock. I discussed this notion in at least two chapters of my first book, Practical Lock Picking. If a person pushes too far with one of his tools while attempting to pick a lock, a pin stack may become “over set” in a way that will interfere with the opening ...