On Email Threat Detection and Response's Privacy Page you can request and collect all the privacy and GDPR related information that Email Threat Detection and Response is providing.
The privacy policy by is a legal document or statement that discloses how Email Threat Detection and Response gathers, uses, discloses, and manges their customers' data.
The basis for Symantec sharing, adding, uploading, hosting, accessing or sending personal data out of Europe. Vendors can also add a description of their own impact assessment for data transfers.