The theme of the conference is the protection of computer networks. The conference will draw participants from academia and industry in Europe and beyond to discuss hot topics in applied network and systems security. Topics include but are not limited to: * Intrusion Detection * Denial-of-Service * Privacy Protection * Security Policies * Peer-to-Peer and Grid Security * Network Monitoring * Web Security * Vulnerability Management and Tracking * Network Forensics * Wireless and Mobile Security * Cryptography * Network Discovery and Mapping * Incident Response and Management * Malicious Software * Web Services Security * Legal and Ethical Issues