This update will affect SINS 520-16 through 520-20. The General Services Administration’s (GSA) Federal Acquisition Service (FAS) is planning to release Refresh 28 of the 00CORP Professional Services Schedule (PSS) in Mid-November 2017. This update will implement a variety of changes to the scope of Special Item Numbers (SINs) 520-16, 520-17, and 520-20. It will also delete SINs 520-18 and 520-19 in order to redefine Data Breach Response and Identity Protection Services under PSS. These changes help to embrace the transition seen in data breach response and help create a proactive solution for identity protection.