Data Discovery & Security by OneTrust is a comprehensive data governance and security platform that discovers, classifies, and controls sensitive data across cloud, SaaS, and on-premises environments, including databases, applications, file shares, and edge devices. The solution performs automated discovery, classification, and cataloging of both structured and unstructured data, implementing field-level and file-level scanning depth. It enables privacy, security, and data governance teams to automatically document data elements, flag violations, enforce retention policies, and generate business insights. The platform connects to data sources through worker nodes to identify, analyze, and produce metadata, while maintaining data security by ensuring discovered data remains within the customer environment without external transmission. Organizations can inventory and classify data for responsible use throughout its lifecycle, with capabilities for implementing data governance frameworks and automating data lifecycle management including retention, deletion, access control, and protection policies.