Starting around 1999, a great many graphical password schemes have been proposed as
alternatives to text-based password authentication. We provide a comprehensive overview …

Password restriction policies and advice on creating secure passwords have limited effects
on password strength. Influencing users to create more secure passwords remains an open …

The tremendous growth in computer network and Internet usage, combined with the growing
number of attacks makes network security a topic of serious concern. One of the most …

Botnets are causing severe damages to users, companies, and governments through
information theft, abuse of online services, DDoS attacks, etc. Although significant research …

Wireless Personal Area Networks (WPAN) allow for the implementation of applications such
as home automation, remote control services, near-field technologies and personal health …

Brute force and dictionary attacks on password-only remote login services are now
widespread and ever increasing. Enabling convenient login for legitimate users while …

Nowadays, the emerging Internet-of-Things (IoT) emphasize the need for the security of
network-connected devices. Additionally, there are two types of services in IoT devices that …

Web attacks are nowadays one of the major threats on the Internet, and several studies have
analyzed them, providing details on how they are performed and how they spread. However …

Cyber-attacks on power-related IT and OT infrastructures can have disastrous
consequences for individuals, regions, as well as whole nations. In order to respond to these …

Recently, advances in cyber-physical systems and IoT led to an increase in devices
connected to the internet. This rise of functionality also comes with an increased attack …