We run our complete Archiving infrastructure on AWS and AWS is ISO certified.
Our Archiving partner is Privacy Shield compliant:
Security White-paper: See the attached white paper for more information on our archiving partners Security.
Privacy Shield web page: http://www.sonian.com/privacyshield/
GDPR Compliance was established in April 2016 and enforcement begins in May 2018. Our archiving partner plans on achieving this compliance by end of 2017.