As an update to the breach involving a subcontractor working in the NYC Social Security Administration Office of Temporary Disability Assistance, other news sources such as WTEN report the name of the individual arrested in the case: Evan Kane of Waterford, New York.
It also appears that in addition to 15,000 Social Security Numbers, other personal information may have been downloaded. Notification letters reported in the media mention dates of birth, phone numbers, and addresses.
H/T, Karen of ITRC