DO NOT reveal the SSNs of any other individuals when writing to one individual concerning
others unless the addressee otherwise has the right to that information.
EXAMPLE: When we write to one claimant, that person would not necessarily be entitled to know
the SSNs of other claimants filing on the same record. However, if a parent has filed
on behalf of one or more child(ren) and has listed the child(ren)'s SSN(s) on the
application, we may refer to the SSN(s) in correspondence to that parent.