Abstract: A computer-implemented method of simulating a propagation of a malware through a set of computer systems, the method comprising: identifying a plurality of first simulated computer systems infected with a simulated malware; for each of the first simulated computer systems, infecting a number of neighbouring second simulated computer systems, the number being zero or an integer; and determining a value of a reproduction number, R0, based on the total number of second simulated computer systems and the number of first simulated computer systems.

Abstract: A method (200) of operating a telecommunications system (100), said telecommunications system comprising a: client device (110); certification server (120) for generating a ticket for the client device; and network server (130) for authenticating the client device using the ticket; the method comprising the steps of: selecting, by the certification server, a parameter associated with the client device (210); generating, by the certification server, a: rule for the selected parameter; ticket for authenticating the client device, wherein the ticket comprises (220): a parameter identifier for identifying to the client device the selected parameter; the rule; processing the ticket, by the client device, so as to retrieve the parameter identifier, and subsequently retrieving a data value for the selected parameter (240); generating a communication, by means of the client device, comprising the retrieved data value in cryptographic association with the ticket (250); communicating, by the client device, the communic

Abstract: A computer-implemented method of simulating a propagation of a malware through a set of computer systems, the method comprising: identifying a simulated computer system infected with a simulated malware; determining a first signature of the simulated malware; determining that a mutation condition for the simulated malware has been met; and in response to determining that the mutation period has been met, changing the first signature of the simulated malware to a second signature.

Abstract: A computer-implemented method of simulating the propagation of malware in a network is provided. The method comprises accessing a model of the network, where the model comprising a plurality of computer nodes and where each computer node of the plurality of computer nodes is connected to at least one edge of a plurality of edges. Each edge of the plurality of edges connects a pair of computer nodes of the plurality of computer nodes. The method further comprises initiating an outbreak of the malware in the model at a predetermined source computer node of the plurality of computer nodes, and propagating the malware through the model of the network from the source computer node over a plurality of step-times.

Abstract: A computer-implemented method of simulating the propagation of malware in a network is provided. The method comprises accessing a model of the network, where the model comprising a plurality of computer nodes and where each computer node of the plurality of computer nodes is connected to at least one edge of a plurality of edges. Each edge of the plurality of edges connects a pair of computer nodes of the plurality of computer nodes. The method further comprises initiating an outbreak of the malware in the model at a predetermined source computer node of the plurality of computer nodes, and propagating the malware through the model of the network from the source computer node over a plurality of step-times.

Abstract: A computer-implemented method of simulating a propagation of a malware through a set of computer systems, the method comprising: identifying a plurality of first simulated computer systems infected with a simulated malware; for each of the first simulated computer systems, infecting a number of neighbouring second simulated computer systems, the number being zero or an integer; and determining a value of a reproduction number, R0, based on the total number of second simulated computer systems and the number of first simulated computer systems.

Abstract: A computer-implemented method of simulating the propagation of malware in a network is provided. The method comprises accessing a model of the network, where the model comprises a plurality of computer nodes and where each computer node of the plurality of computer nodes is connected to at least one edge of a plurality of edges. Each edge of the plurality of edges connects a pair of computer nodes of the plurality of computer nodes. The method further comprises initiating an outbreak of the malware in the model at a predetermined source computer node of the plurality of computer nodes, and propagating the malware through the model of the network from the source computer node.

Abstract: A computer-implemented method of simulating a propagation of a malware through a set of computer systems, the method comprising: identifying a simulated computer system infected with a simulated malware; determining a first signature of the simulated malware; determining that a mutation condition for the simulated malware has been met; and in response to determining that the mutation period has been met, changing the first signature of the simulated malware to a second signature.