APPARATUS FOR RECONFIGURATION OF A TECHNICAL SYSTEM BASED ON SECURITY ANALYSIS AND A CORRESPONDING TECHNICAL DECISION SUPPORT SYSTEM AND COMPUTER PROGRAM PRODUCT

摘要

The invention relates to an apparatus for analyzing and reconfiguring a technical system (2) with respect to security, as well as a corresponding decision support system and computer program product. A graph constructor (20) provides, based on technical information about the system (2) received via an input interface (10), a representation of potential attacks in a directed graph of attack nodes. A system/countermeasure analysis unit (30) ranks different sets of countermeasures to enable a selected set of countermeasures to be taken to improve security. The analysis unit (30) performs the following procedure for each set of countermeasures: i) logically apply the set of countermeasures to attacks in the directed graph, and ii) determine a rank of the applied set of countermeasures based on the effectiveness of the countermeasures with respect to the reduction of the risk of attacks. An output and/or control unit (40) may then provide appropriate control signaling and/or effectuate appropriate control actions for reconfiguration of the technical system (2).