This document contains information from a Dynamics 365 Saturday event in Milan on February 8, 2019. It discusses auditing and data security in Dynamics 365 Customer Engagement applications. The presenters, Ramon Tebar and Marco Amoedo, cover how auditing has evolved from Dynamics CRM 1.0 to Dynamics 365. They provide methods for programmatically updating fields like Created By and Modified By. Finally, they discuss using the Office 365 Security & Compliance center for activity logging across Dynamics 365 and other Office 365 applications.