Industrial plant security apparatus and monitoring method of security of an industrial plant

摘要

An industrial plant security apparatus includes a first monitoring subapparatus (2) for monitoring the integrity of a physical domain of the plant (1) and for detecting events which do not comply with predetermined physical security parameters of the plant (1); and a second monitoring subapparatus (3) for monitoring the integrity of a logic domain of the plant (1) and for detecting events which do not comply with predetermined logic security parameters of the plant (1). The apparatus is also provided with an event correlation unit (5) configured to automatically identify correlations between events detected by the first subapparatus (2) and by the second subapparatus (3) and to determine a security level (SL) of the plant according to the identified correlations.