US-Privacy Shield is no longer listed as adequate in list maintained by Swiss Federal Data Protection Office. (updated 8-Sep-2020)
https://www.edoeb.admin.ch/dam/edoeb/de/dokumente/2020/staatenliste.pdf.download.pdf/20200908_Staatenliste_d.pdf
EDöB’s assessment on 8-Sep-2020: https://www.admin.ch/gov/de/start/dokumentation/medienmitteilungen.msg-id-80318.html