 the story: as mentioned the user has some fundamental requirements on the information transfer: integrity and confidentiality. Once these requirements are jeopardized, it has a severe impact on the utilization of the networks. The first type of service to be affected is transactional services, typically B2B and B2C. Consequently e-commerce services are rejected by many people, because they don't trust the confidentiality and integrity of the service offered. An enquiry in the USA in 2001 asked: 'What puts people off buying on the Internet?" The result was clear: 86 % answered: 'Fear about security of sensitive information'. Let us at state, therefore, that security is one of the most critical areas for success within the telecom area. It has now even become a national concern. At a time when the risk for cyber war has become a reality there are countries that are considering development of their own 'counter virus'. The Internet publication 'News.com' has published an article with the heading 'Will the Web ever be secure?' The answer that is given as: 'Based on where we have been and where we are heading, we have every right to expect the Web to become increasingly secure as security continues to enable, rather than strangle business performance'. This is just one voice (Steve Mills) out of a huge number of views, with divergent opinions. The gradually increasing market share of the more vulnerable wireless access on behalf of wired access must for example be considered. The Wireless world research forum stresses the need for systems that provide wireless users affordable broadband mobile access solutions for the applications of secured wireless Security mobile Internet services with value-added quality-of-service (QoS) through application layer all the way to the media access control (MAC) layer. When looking back to the 'good old days' in telecommunication there was no or very little talk about security. This is another aspect of changing telecommunications, which obviously calls for an explanation: Has the te