Patent attributes
Techniques are described for graph-based analysis of event data in a computing environment. Event data is collected from host devices, the event data describing events in which devices, processes, or services are accessed in the environment. The event data is arranged into a graph that includes vertices corresponding to devices, processes, or services, and edges that connect pairs of vertices. Each edge may identify an event by connecting two vertices corresponding to two devices, processes, or services included in the event. A rarity metric is determined for each edge, indicating a rarity of events of a particular type connecting two vertices. A risk metric may also be determined for each edge, indicating a security risk associated with the event type or the target of the event. The graph may be traversed according to the risk and rarity metrics, to identify patterns of anomalous activity in the event data.
