CYA is most likely, although #2 is possible. Changing names (due to marriage, for example), moving, losing (and thus getting a new SSN) are all possible, and mi

CYA is most likely, although #2 is possible. Changing names (due to marriage, for example), moving, losing (and thus getting a new SSN) are all possible, and might screw up the database. A small CYA phrase helps a lot.