Today, digitalization decisively penetrates all the sides of the modern society. One of the key
enablers to maintain this process secure is authentication. It covers many different areas of a …

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 …

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 …

Adaptive Authentication allows a system to dynamically select the best mechanism (s) for
authenticating a user depending on contextual factors, such as location, proximity to …

From email to online banking, passwords are an essential component of modern internet
use. Yet, users do not always have good password security practices, leaving their accounts …

Although many users create predictable passwords, the extent to which users realize these
passwords are predictable is not well understood. We investigate the relationship between …

We investigate how a population of end-users with especially salient security and privacy
risks---sex workers---conceptualizes and manages their digital safety. The commercial sex …

Cloud computing is one of the evolving fields of technology, which allows storage, access of
data, programs, and their execution over the internet with offering a variety of information …

Individuals often fail to perform the security behaviors their organizations request to protect
informational assets. However, forcing individuals into the compliance can trigger undesired …

Much attention has been paid to passwords chosen by English speaking users, yet only a
few studies have examined how non-English speaking users select passwords. In this …