Pattern unlock is one of the entry protection mechanisms in Android system for unlocking the
screen. By connecting 4–9 dots in a 3× 3 grid, the user can set up an unlock pattern which is …

Android unlock patterns are still commonly used, and roughly 25% of the respondents to our
study use a pattern when unlocking their phone. Despite security issues, the design of the …

Secure user authentication is a big challenge for smartphone security. To overcome the
drawbacks of knowledge-based method, various graphical passwords have been proposed …

We present a similarity metric for Android unlock patterns to quantify the effective password
space of user-defined gestures. Our metric is the first of its kind to reflect that users choose …

Pattern lock is widely used for identification and authentication on Android devices. This
article presents a novel video-based side channel attack that can reconstruct Android …

Android's graphical authentication mechanism requires users to unlock their devices by"
drawing" a pattern that connects a sequence of contact points arranged in a 3x3 grid. Prior …

Android Unlock Patterns are one of the most widely used graphical password schemes.
However, the scheme's security is limited by users not choosing patterns uniformly but with a …

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 …

Graphical passwords that allow a user to unlock a smartphone's screen are one of the
Android operating system's features and many users prefer them instead of traditional text …

Purpose This paper aims to evaluate the effect of multi-touch behaviours on creating
Android unlock patterns (AUPs) by realising that users can perform more actions in touch …