Abstract Typically, Cyber-Physical Systems (CPS) involve various interconnected systems,
which can monitor and manipulate real objects and processes. They are closely related to …

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

Traditional health-care systems suffer from new challenges associated with the constant
increase in the number of patients. In order to address this issue, and to increase the …

In recent years, attacks against various Internet-of-Things systems, networks, servers,
devices, and applications witnessed a sharp increase, especially with the presence of 35.82 …

While trawling online/offline password guessing has been intensively studied, only a few
studies have examined targeted online guessing, where an attacker guesses a specific …

State-of-the-art password guessing tools, such as HashCat and John the Ripper, enable
users to check billions of passwords per second against password hashes. In addition to …

Despite three decades of intensive research efforts, it remains an open question as to what
is the underlying distribution of user-generated passwords. In this paper, we make a …

Today's Internet services rely heavily on text-based passwords for user authentication. The
pervasiveness of these services coupled with the difficulty of remembering large numbers of …

Human-chosen text passwords, today's dominant form of authentication, are vulnerable to
guessing attacks. Unfortunately, existing approaches for evaluating password strength by …

The state of advice given to people today on how to stay safe online has plenty of room for
improvement. Too many things are asked of them, which may be unrealistic, time …