Cyber attacks are currently blooming, as the attackers reap significant profits from them and
face a limited risk when compared to committing the “classical” crimes. One of the major …

Computers that contain sensitive information are often maintained in air-gapped isolation. In
this defensive measure, a computer is disconnected from the Internet-logically and …

Personal storage services are one of the most popular applications based on the cloud
computing paradigm. Therefore, the analysis of possible privacy and security issues has …

Smart environments integrate Information and Communication Technologies (ICT) into
devices, vehicles, buildings and cities to offer an increased quality of life, energy efficiency …

Abstract Information hiding is increasingly used to implement covert channels, to exfiltrate
data or to perform attacks in a stealthy manner. Another important usage deals with privacy …

The use of network covert channels to improve privacy or support security threats has been
widely discussed in the literature. As today, the totality of works mainly focuses on how to not …

Network covert channels are hidden communication channels in computer networks. They
influence several factors of the cybersecurity economy. For instance, by improving the …

Undetectable wireless transmissions are fundamental to avoid eavesdroppers or censorship
by authoritarian governments. To address this issue, wireless steganography “hides” covert …

Covert channels in network protocols are a technique aiming to hide the very existence of
secret communication in computer networks. In this work we present a systematic in-depth …

The Internet of Things (IoT) is expected to pervasively interconnect billions of devices,
denoted as “smart objects”, in an Internet-like structure, which will extend the current …