1. A method for identifying potentially malicious network elements within a network, wherein the network comprises a plurality of domains administrated by different operators P1,. .. , Pn, the method comprising: receiving, at a functional entity, qualifying information regarding at least one network element that has been transmitted by at least some of the operators P1,. .. , Pn, the at least one network element being qualified as being potentially malicious, and providing, by the functional entity, at least one of an alarm information or an alarm activity based on a predefined number of the operators P1,. .. , Pn having transmitted the qualifying information regarding a same potentially malicious network element to the functional entity.