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We propose a new class of signal injection attacks on microphones by physically converting light to sound. We show how an attacker can inject arbitrary audio signals to a target microphone by aiming an amplitude-modulated light at the…

Cryptography and Security · Computer Science 2020-06-23 Takeshi Sugawara , Benjamin Cyr , Sara Rampazzi , Daniel Genkin , Kevin Fu

Most of the smart applications, such as smart energy metering devices, demand strong privacy preservation to strengthen data privacy. However, it is difficult to protect the privacy of the smart device data, especially on the client side.…

Cryptography and Security · Computer Science 2022-10-07 Venkatesh Kumar M

Recently, recommender systems have achieved promising performances and become one of the most widely used web applications. However, recommender systems are often trained on highly sensitive user data, thus potential data leakage from…

Cryptography and Security · Computer Science 2021-09-17 Minxing Zhang , Zhaochun Ren , Zihan Wang , Pengjie Ren , Zhumin Chen , Pengfei Hu , Yang Zhang

Smart Grid is a power grid system that uses digital communication technologies. By deploying intelligent devices throughout the power grid infrastructure,from power generation to consumption, and enabling communication among them, it…

Cryptography and Security · Computer Science 2024-04-09 Daisuke Mashima , Yao Chen , Muhammad M. Roomi , Subhash Lakshminarayana , Deming Chen

Smart meters are key elements for the operation of smart grids. By providing near realtime information on the energy consumption of individual users, smart meters increase the efficiency in generation, distribution and storage of energy in…

Information Theory · Computer Science 2016-11-17 Onur Tan , Deniz Gunduz , H. Vincent Poor

Air-gapped systems are considered highly secure against data leaks due to their physical isolation from external networks. Despite this protection, ultrasonic communication has been demonstrated as an effective method for exfiltrating data…

Cryptography and Security · Computer Science 2025-06-11 Mordechai Guri

The connection of home electronic devices to the internet allows remote control of physical devices and involves the collection of large volumes of data. With the increase in the uptake of Internet-of-Things home devices, it becomes…

Computers and Society · Computer Science 2022-09-13 David Buil-Gil , Steven Kemp , Stefanie Kuenzel , Lynne Coventry , Sameh Zakhary , Daniel Tilley , James Nicholson

Smart devices are becoming inseparable from daily lives and are improving fast for providing intelligent services and remote monitoring and control. In order to provide personalized and customized services more personal data collection is…

Computers and Society · Computer Science 2020-08-13 Athar Khodabakhsh , Sule Yildirim Yayilgan

The security and privacy of smart home systems, particularly from a home user's perspective, have been a very active research area in recent years. However, via a meta-review of 52 review papers covering related topics (published between…

Human-Computer Interaction · Computer Science 2022-12-13 Nandita Pattnaik , Shujun Li , Jason R. C. Nurse

A smart meter (SM) periodically measures end-user electricity consumption and reports it to a utility provider (UP). Despite the advantages of SMs, their use leads to serious concerns about consumer privacy. In this paper, SM privacy is…

Information Theory · Computer Science 2016-11-17 Giulio Giaconi , Deniz Gündüz , H. Vincent Poor

In the electricity grid, networked sensors which record and transmit increasingly high-granularity data are being deployed. In such a setting, privacy concerns are a natural consideration. We present an attack model for privacy breaches,…

Optimization and Control · Mathematics 2014-06-02 Lillian J. Ratliff , Roy Dong , Henrik Ohlsson , Alvaro A. Cardenas , S. Shankar Sastry

Internet of Things is a novel concept that semantically implies a world-wide network of uniquely addressable interconnected smart objects. It is aimed at establishing any paradigm in computing. This environment is one where the boundary…

Networking and Internet Architecture · Computer Science 2014-06-20 Tapalina Bhattasali , Rituparna Chaki , Nabendu Chaki

The current amount of IoT devices and their limitations has come to serve as a motivation for malicious entities to take advantage of such devices and use them for their own gain. To protect against cyberattacks in IoT devices, Machine…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-07-03 Vitalina Holubenko , Paulo Silva , Carlos Bento

In this paper we show how attackers can covertly leak data (e.g., encryption keys, passwords and files) from highly secure or air-gapped networks via the row of status LEDs that exists in networking equipment such as LAN switches and…

Cryptography and Security · Computer Science 2017-06-06 Mordechai Guri , Boris Zadov , Andrey Daidakulov , Yuval Elovici

Privacy and security in Smart Cities remain at constant risk due to the vulnerabilities introduced by Internet of Things (IoT) devices. The limited computational resources of these devices make them especially susceptible to attacks, while…

Cryptography and Security · Computer Science 2025-10-03 Andrés F. Betancur-López

More and more smart devices enter our homes. Often these devices come with a variety of sensors, mostly simple sensors, e.g., for light, temperature, humidity or motion. And they all collect data. While it is data of the home environment it…

Human-Computer Interaction · Computer Science 2024-12-11 Albrecht Kurze , Alexa Becker

Home automation for many years had faced challenges that limit its spreading around the world. These challenges caused by the high cost of Own such a home, inflexibility system (cannot be monitored outside the home) and issues to achieve…

Cryptography and Security · Computer Science 2023-09-01 Nesreen Mufid

The smart grid is envisioned to significantly enhance the efficiency of energy consumption, by utilizing two-way communication channels between consumers and operators. For example, operators can opportunistically leverage the delay…

Optimization and Control · Mathematics 2016-11-18 Yara Abdallah , Zizhan Zheng , Ness B. Shroff , Hesham El Gamal , Tarek M. El-Fouly

In this work, we design and develop a smart intruder detection and alert system which aims to elevate the security as well as the likelihood of true positive identification of trespassers and intruders as compared to other commonly deployed…

Computers and Society · Computer Science 2015-08-17 Manish Kumar , Shubham Kaul , Vibhutesh Kumar Singh , Vivek Ashok Bohara

As IoT devices become cheaper, smaller, and more ubiquitously deployed, they can reveal more information than their intended design and threaten user privacy. Indoor Environmental Quality (IEQ) sensors previously installed for energy…

Signal Processing · Electrical Eng. & Systems 2023-04-14 Alan Wang , Bradford Campbell , Arsalan Heydarian