A method for processing security events by applying a rule-based alarm scheme may be provided. The method includes generating a rule index of rules and an indicator of compromise index for each of the rules. The method includes also processing the incoming security event by applying the rules, increasing a current rule counter relating to a triggered rule, and increasing a current indicator of compromise counter pertaining to the triggered rule. Furthermore, the method includes generating a pseudo security event from received data about known attacks and related indicators of compromise, processing the pseudo security events by sequentially applying the rules, increasing a current rule counter of pseudo security events, and increasing a current indicator of compromise counter for pseudo security events, and sorting the rules and sorting within each rule the indicator of compromise values in the indicator of compromise index.

An apparatus for managing a security policy of a firewall according to an embodiment includes a rule request module that receives one or more requested rules to be applied to a firewall, a rule merge module that merges a pre-applied rule of the firewall and the one or more requested rules when the number of rules applied to the firewall exceeds a maximum number of rule registrations of the firewall due to the requested rule, and a firewall interface module that receives the pre-applied rule from the firewall and provides the pre-applied rule to the rule merge module, and re-registers a merged rule merged through the rule merge module in the firewall, and the rule merge module is configured to merge the pre-applied rule and the one or more requested rules so that a security vulnerable space occurring due to the merging is minimized.

An enterprise organization may operate a central network and one or more remote networks, each comprising a plurality of computing devices. For protection against malicious actors, the central network may be configured to filter network traffic associated with the computing devices based on identified threats. Traffic corresponding to computing devices connected to the remote network may be tunneled to the central network for filtering by the central network. A tunnel gateway device, associated with the remote network, may efficiently identify which communications are associated with Internet threats, and tunnel such identified traffic to the central network, where actions may be taken to protect the enterprise network.

A system, a method, and a computer program are provided for securely connecting a main network to one or more subnetworks in an enterprise network through a group of enterprise routers has all data traffic routed between the main network and the subnetwork through an encrypted virtual private network (VPN) tunnel. The data traffic is monitored for a cyberthreat indication in the enterprise network, and any cyberthreat indication is has the cyberthreat remediated by modifying a policy in a firewall or one of the group of enterprise routers to stop routing exchange or cease encryption or transmission of data between the main network and the one or more subnetworks. In part, a key server and each router and the group of enterprise routers is configured with an Internet Protocol address, a group security association value, and a group profile which are employed by the technological solution for secure enterprise connectivity.

An apparatus includes a network component that is connected between at least two communication, installation and/or computer networks and is suitable and designed for allowing the passage of data traffic between the networks on the basis of adaptable and appropriately activated data traffic rules or for blocking the passage of data traffic through the network component. The network component has a communication relationship recording functionality for recording the communication relationships present during the passage of the data traffic. The recording functionality can be temporarily activated and/or deactivated for recording communication relationships, and the processing of the recorded communication relationships for the purpose of adapting and subsequently activating the data traffic rules is enabled only when the communication relationship recording functionality is deactivated. Also, a method for operating such a network component.

A processor may identify one or more predicted microservice chains for each of one or more user profiles. The one or more predicted microservice chains may be selected based on historical information. The one or more user profiles may each be associated with a respective user of a user device. The processor may analyze user specific information. The user specific information may be associated with the user device. The processor may determine, based on the user specific information, if the user device causes network intrusion. The processor may perform, based on the determination, an action for the user device.

Techniques are described to provide efficient protection for a virtual private network. In one example, a method is provided that includes obtaining a packet at a first network entity; determining that the packet is a packet type of an authentication type; determining whether authentication content for the packet matches known good criteria for the packet type of the authentication type; based on determining that the authentication content for the packet does not match the known good criteria, performing at least one of dropping the packet and generating an alarm; and based on determining that the authentication content for the packet does match the known good criteria, processing the packet at the first network entity or forwarding the packet toward a second network entity.

There is disclosed in one example a gateway apparatus to operate on an intranet, including: a hardware platform; and an access proxy engine to operate on the hardware platform and configured to: intercept an incoming packet; determine that the incoming packet is an access request directed to an access interface of a resource of the intranet; present an access checkpoint interface; receive an authentication input response; validate the authentication input response; and provide a redirection to the access interface of the device.

A cyber security protection system includes a plurality of threat information updating devices; and a proactive suspicious domain alert system, which including: a domain information monitoring device; a domain information storage device; and a security threat analysis device, arranged to operably communicate data with the plurality of threat information updating devices through a network. If the domain information monitoring device detects that a domain mapping of a suspect domain is changed and the new domain mapping of the suspect domain points to a predetermined local address, the domain information monitoring device would further monitor a domain mapping variation frequency of the suspect domain. If the domain mapping variation frequency of the suspect domain exceeds a predetermined value, the security threat analysis device adds the suspect domain into an alert list to render the plurality of threat information updating devices to block their member devices from accessing the suspect domain.

Techniques for a network controller associated with a firewall service to determine a network policy based on operational tolerances associated with a device, and cause the network policy to be provisioned at the firewall service where control commands, such as, for example, supervisory control and data acquisition (SCADA) commands, may be allowed or denied transmission to the device based on the operational tolerance(s) associated with the device. In some examples, the network controller may be configured as a manufacturer usage description (MUD) controller configured to transmit a MUD uniform resource identifier (URI), emitted by the device, to a MUD file server associated with the manufacturer of the device. The MUD file may be enhanced to include the operational tolerances associated with the device and transmitted back to the MUD controller where it may be parsed to determine a corresponding network policy.