Nowadays, mobile devices are an important part of our everyday lives since they enable us
to access a large variety of ubiquitous services. In recent years, the availability of these …

Designing reliable user authentication on mobile phones is becoming an increasingly
important task to protect users' private information and data. Since biometric approaches can …

We show that accelerometer readings are a powerful side channel that can be used to
extract entire sequences of entered text on a smart-phone touchscreen keyboard. This …

Attacks that use side channels, such as sound and electromagnetic emanation, to infer
keystrokes on physical keyboards are ineffective on smartphones without physical …

Today's smartphones are shipped with various embedded motion sensors, such as the
accelerometer, gyroscope, and orientation sensors. These motion sensors are useful in …

We explore the threat of smartphone malware with access to on-board sensors, which opens
new avenues for illicit collection of private information. While existing work shows that such …

Due to the advancement in technologies and excessive usability of smartphones in various
domains (eg, mobile banking), smartphones became more prone to malicious attacks …

Modern smartphones are equipped with a plethora of sensors that enable a wide range of
interactions, but some of these sensors can be employed as a side channel to surreptitiously …

Smartphones are pervasively used in society, and have been both the target and victim of
malware writers. Motivated by the significant threat that presents to legitimate users, we …

Cellular networks (eg, 3G) are currently facing severe traffic overload problems caused by
excessive traffic demands. Offloading part of the cellular traffic through other forms of …