Abstract: A method for evaluating a scope of cyber-attack incidents, the method may include detecting original compromised assets and malicious external machines that are related to each of the cyber-attack incidents; classifying potentially compromised assets to different classes based on (a) similarities between the potentially compromised assets and the original compromised assets, (b) a level of accessibility from the original compromised assets and malicious external machines to the potentially compromised assets, and (c) volumes of traffic between the potentially compromised assets and each one of the malicious external machines and the original compromised assets; wherein the different classes comprise compromised and non-compromised; and generating an alert that is indicative of the compromised assets and of potentially compromised assets that were classified as compromised.

Abstract: A method for simulation aided security event management, the method comprises: generating attack simulation information that comprises multiple simulation data items of at least one data item type out of vulnerability instances data items, attack step data items and attack simulation scope data items; wherein the generating of attack simulation information is responsive to a network model, at least one attack starting point and attack action information; identifying security events in response to a correlation between simulation data items and event data; and prioritizing identified security events.

Abstract: A method for simulation aided security event management, the method comprises: generating attack simulation information that comprises multiple simulation data items of at least one data item type out of vulnerability instances data items, attack step data items and attack simulation scope data items; wherein the generating of attack simulation information is responsive to a network model, at least one attack starting point and attack action information; identifying security events in response to a correlation between simulation data items and event data; and prioritizing identified security events.