1. A method comprising: maintaining a centralized collection of user configured alert data, the alert data for notifying a user of a particular user carried mobile data processing system that the particular user carried mobile data processing system was feasibly targeted by an aim of an image capturing mobile data processing system at a time the image capturing mobile data processing system captures image data; determining vector data describing the aim of the image capturing mobile data processing system at the time the image capturing mobile data processing system captures the image data, the vector data including: a vector origin describing a physical location of the image capturing mobile data processing system, and vector directional data describing the aim of the image capturing mobile data processing system; determining with the vector data the particular user carried mobile data processing system was feasibly targeted by the aim of the image capturing mobile data processing system at the time the image capturing mobile data processing system captures the image data; searching the centralized collection for a matching alert configuration using at least one of: an identifier associated with the image capturing mobile data processing system, or an identifier associated with the particular user carried mobile data processing system; determining with the searching the matching alert configuration; accessing notification content in accordance with the matching alert configuration, the notification content for notifying the user of the particular user carried mobile data processing system that the particular user carried mobile data processing system was feasibly targeted by the aim of the image capturing mobile data processing system at the time the image capturing mobile data processing system captures the image data; and communicating the notification content for the notifying the user of the particular user carried mobile data processing system that the particular user carried mobile data processing system was feasibly targeted by the aim of the image capturing mobile data processing system at the time the image capturing mobile data processing system captures the image data.