Techniques are provided for generating data based on at least one of physical and behavioral characteristics associated with an individual, an entity or a context, which may then be used for a variety of security and/or meta-data analysis purposes. This may be accomplished, for example, by capturing and processing multiple streams of data, such as conversational meta-data, associated with an individual or an entity, and building statistical models and/or extracting heuristics from such data. The statistical models and/or heuristics may then be used, by way of example, for such purposes as user identification, verification of an identity claim, context detection and further heuristic extraction.