While operating, information processing devices or communication systems may emit
unwanted signals (or alter existing ones) through electromagnetic waves, light, sound or …

In this article, we provide an implementation, evaluation, and analysis of PowerHammer-an
attack that uses power lines to exfiltrate data from air-gapped computers. A malicious code …

Major public institutions and organizations that handle sensitive data frequently enforce
strong security policies by implementing network separation policies that segregates their …

Voice assistants can be manipulated by various malicious voice commands, yet existing
attacks require a nearby speaker to play the attack commands. In this paper, we show that …

Breaching highly secure networks with advanced persistent threats (APTs) has been proven
feasible in the last decade, however communication between the attacker outside the …

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 …

Cryptocurrency wallets store the wallet's private key (s), and hence, are a lucrative target for
attackers. With possession of the private key, an attacker virtually owns all of the currency in …

Using the keyboard LEDs to send data optically was proposed in 2002 by Loughry and
Umphress [1](Appendix A). In this paper we extensively explore this threat in the context of a …

An air-gapped network is a type of IT network that is separated from the Internet-physically–
due to the sensitive information it stores. Even if such a network is compromised with a …

In this article, we introduce a new covert channel that enables attackers to leak data
acoustically from highly secured, air-gapped and audio-gapped systems. The proposed …