Locksmithing is the science and art of making and defeating locks. Practitioners are called locksmiths. Locksmithing is one of the earliest forms of security engineering. Lock-picking was one of the first forms of security system cracking.
The issue of full disclosure was first raised in the context of locksmithing.
... which 28.9% have children under the age of 18 living with them, 42.6% are married couples living together, 11.9% have a female householder with no husband present, and 42.6% ...