The presence of decision-making algorithms in society is rapidly increasing nowadays,
while concerns about their transparency and the possibility of these algorithms becoming …

The advancement in the computational capability and storage size of a modern mobile
device has evolved it into a multi-purpose smart device for individual and business needs …

Mobile behavioral biometrics have become a popular topic of research, reaching promising
results in terms of authentication, exploiting a multimodal combination of touchscreen and …

Current mobile user authentication systems based on PIN codes, fingerprint, and face
recognition have several shortcomings. Such limitations have been addressed in the …

Mobile devices such as smartphones and smartwatches are part of our everyday life,
acquiring large amount of personal information that needs to be properly secured. Among …

The growing number of mobile devices over the past few years brings a large amount of
personal information, which needs to be properly protected. As a result, several mobile …

This work presents mEBAL, a multimodal database for eye blink detection and attention
level estimation. The eye blink frequency is related to the cognitive activity and automatic …

In this paper we study the suitability of a new generation of CAPTCHA methods based on
smartphone interactions. The heterogeneous flow of data generated during the interaction …

We first study the suitability of behavioral biometrics to distinguish between computers and
humans, commonly named as bot detection. We then present BeCAPTCHA-Mouse, a bot …

Smartphones utilize various authentication methods, including passwords, fingerprints, and
face recognition. While this information is quite practical and easy to remember, it introduces …