A system for comprehensive cybersecurity analysis and rating based on heterogeneous data and reconnaissance is provided, comprising a multidimensional time-series data server configured to create a dataset with at least time-series data gathered from passive network reconnaissance of a client; and a cybersecurity scoring engine configured to retrieve the dataset from the multidimensional time-series data server, process the dataset using at least computational graph analysis, and generate an aggregated cybersecurity score based at least on results of processing the dataset.