In search of the silver bullet to solve the password problem, the field of knowledge-based
authentication has become bloated with novel proposals aiming to replace textual …

Abusers increasingly use spyware apps, account compromise, and social engineering to
surveil their intimate partners, causing substantial harms that can culminate in violence. This …

Android is the most widely deployed end-user focused operating system. With its growing
set of use cases encompassing communication, navigation, media consumption …

Given the difficulties of studying the shoulder surfing resistance of authentication systems in
a live setting, researchers often ask study participants to shoulder surf authentications by …

Android pattern lock is still popularly used for mobile user authentication. Unfortunately,
however, many concerns have been raised regarding its security and usability. User-created …

Recent research demonstrates the potential of touch dynamics as a usable and privacy-
preserving scheme for smartphone authentication. Most existing approaches rely on …

Passwordless authentication is a trending theme in cyber security, while biometrics
gradually replace knowledge-based schemes. However, Personal Identification Numbers …

The pervasive use of mobile devices exposes users to an elevated risk of shoulder-surfing
attacks. Despite the prior work on shoulder-surfing resistance of mobile user authentication …

PIN authentication is widely used on mobile devices due to its usability and simplicity.
However, it is known to be susceptible to shoulder surfing attacks, where an adversary spies …

Smartwatches are becoming increasingly ubiquitous as they offer new capabilities to
develop sophisticated applications that make daily life easier and more convenient for …