Abstract. Network Intrusion Detection Systems (NIDS) aim at preventing network attacks and unauthorised remote use of computers. More accurately, depending on the kind of attack it...
When traditional firewall and intrusion detection systems (IDS) are used to detect possible attacks from the network, they often make wrong decisions and block the legitimate conn...
Zero-day attacks, new (anomalous) attacks exploiting previously unknown system vulnerabilities, are a serious threat. Defending against them is no easy task, however. Having ident...
The security policy of an information system may include a wide range of different requirements. The literature has primarily focused on access and information flow control require...
Incidents such as Solar Sunrise and Nimda demonstrate the need to expressively model distributed and complex network attacks. To protect information systems, system administrators...