CrowsNest Defends Data with Real-time Data Insight. CrowsNest is the first real-time data security analytics platform for data exfiltration protection. It delivers immediate visibility into your organization’s data movement, usage, and changes to protect it from theft and misuse. CrowsNest analyzes incoming data, data in motion across the network, and data leaving the environment to continuously monitor data usage. Anomalies trigger alerts to the CrowsNest console or to your SIEM solution. Security defenders receive a data “chain of custody” that identifies exactly who, where, when, and how content was accessed, modified, or distributed. CrowsNest data defense complements existing security measures, enabling you to protect data without adding security experts. CrowsNest uses data payload inspection and active machine learning to identify, analyze, and track files as they are used across the network.