Visualization for Monitoring Network Security Events

As networks increase in size and complexity, IT security officers are being overwhelmed by large volumes of data (alerts from IDSes, logs from various machines and services, etc). These data are often very heterogeneous and multidimensional. It is, of course, impossible to handle these data manually and even automated analysis tools are often inadequate owing to the scale of the data. This situation has reached a point at which most available data is never used. Visualization provides new hope in this context.