1. A system for detecting intrusions in operations of a computer system comprising: (a) a plurality of sensors, each sensor configured to gather information regarding the operation of the computer system, to format the information in a data record, and to transmit the data record; (b) one or more databases configured to receive the data record from the sensor, to store the data record, and to store an intrusion detection model; (c) a detection model generator configured to request training data from a plurality of data records from the one or more databases, said training data comprising data collected from at least two sensors, to generate the intrusion detection model based on said training data from a plurality of data records, and to transmit the intrusion detection model to the one or more databases; (d) a detector configured to receive a data record from the sensor and to classify the data record in real-time as one of normal operation and an attack based on said intrusion detection model; (e) a data analysis engine including at least a specially-programmed microprocessor configured to request data records from the one or more databases and to perform a data processing function on the data records; (f) a detection model generator configured to update the intrusion detection model in real-time; (g) a detection model distributor configured to receive said intrusion detection model from the one or more databases and to transmit the detection model to at least one detector; (h) a forensics analysis engine configured to retrieve a set of historical data from the one or more databases and apply a detection algorithm to find anomalous activity in the data set; and (i) a visualization analysis engine configured to: display the selected data from the one or more databases in real-time; enable a system administrator to identify suspicious activity, not automatically identified by the intrusion detection model, as an attack in real-time; and update the intrusion detection model based on the suspicious activity identified by the system administrator.