METHOD AND APPARATUS FOR NETWORK SECURITY

摘要

A method and apparatus are disclosed which incorporate a system for enabling the adaptive modification of the security level of a node in a network. The system is particularly applicable to dynamic network i.e. networks in which nodes may be mobile and in which the network topology is not constant. The node receives beacon signals from other nodes in the network, said signals providing an indication of the alert level of the other nodes and an indication of whether the other nodes are trusted members of the network. The alert level of the node is determined based on the received signals.