On Citrix Web App Firewall's Privacy Page you can request and collect all the privacy and GDPR related information that Citrix Web App Firewall is providing.
The privacy policy by is a legal document or statement that discloses how Citrix Web App Firewall gathers, uses, discloses, and manges their customers' data.
The basis for Citrix 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.