Method, system and devices for securing traffic on a traffic path in a computer network

The present disclosure relates to a method for securing traffic on a traffic path (129) from a first node (123.1) of a first domain (125.1) to a second node (123.n) of a second domain (125.n) of a computer network (127), the method comprising: receiving, by an analysis device (105) of the computer network (127), data indicative of an intrusion attempt to at least one part of the traffic path (129); determining if a rectification action is required for the computing network (127) based on the received data; and requesting by the analysis device (105) a secure path for the traffic as an alternative of the traffic path based on a determination that the rectification action is required, wherein the request causes transmission by the analysis device (105) of a message that indicates the at least one part of the traffic path to be secured and a security level value of at least a plurality of computer elements of the computer network (127) for computing the secure path for the traffic linking the first node (123.1) to the second node (123.n) through one or more computer elements of the at least a plurality of computer elements, wherein the security level value is indicative of the vulnerability of the computer element security.