) Ad Hoc and Sensor Network Security Cryptographic protocols Database and System Security E-mail fraud E-mail security Internet Security & Applications Intrusion Detection and Prevention Machine Learning MiM Mobile Network and Wireless Network Security Peer-to-Peer Network Security Performance Evaluations of Protocols & Security Application Phishing Replay attack etc Security & Network Management Security threats & countermeasures (DDoS Session Hijacking Spam Trojan Protection Ubiquitous Computing Security Virus Web 2.0 security computer science software web worms