Dear Colleague,

The Internet of Things (IoT) has seen rapid growth over the last decade with applications in healthcare, Industry 4.0, smart cities, power grids, military, autonomous vehicles, and other critical infrastructures. The number of IoT devices is increasing exponentially and is estimated to reach 50 billion by 2025. The basic motivation for IoT is better decision-making, i.e., the large amount of data collected from billions of IoT devices is uploaded to the cloud and then both big data analytics and AI are utilized to make better decisions. Thus, the basic entity of any AI-based big data analytics system is an IoT device, such as a small sensor.

Although IoT presents new and exciting applications, and is now capturing a significant market share in many application domains, security concerns remain. Much of the research proposed over the last few years has concentrated on developing security protocols for IoT. However, the work on IoT device security is not exhaustive. In contrast to personal computers, IoT devices are not physically well protected, i.e., the simple, low-cost nature and remote location aspect puts these devices at risk of physical attacks. Therefore, if an adversary gains physical access to an IoT device, he/she can not only compromise the device but also use it as the attack vector to propagate malware and compromise many connected IoT devices. This shows the importance of securing an IoT device. Due to the increasing number of attacks on IoT devices over the last decade, IoT device security is gaining great attention from the research community. This Special Issue focuses on the important problem of protecting IoT devices from physical attacks. Authors are encouraged to submit their recent state-of-the-art solutions to important cybersecurity concerns related to the physical security of IoT devices. Papers submitted to this Special Issue will be judged on the importance of the problem, originality of the solution, and the contribution towards the existing body of knowledge. Topics of interest include but are not limited to the following:

• Physical attacks on IoT devices;
• Physical root of trust for IoT devices;
• Remote attestation of IoT devices;
• Physical security protocols for IoT;
• Detecting compromised IoT devices;
• Locating compromised IoT devices;
• Physical attacks on autonomous vehicles;
• Remote attestation of autonomous vehicles;
• Physical secure patching of IoT devices;
• Isolating compromised IoT devices for malware control;
• Blockchain and physical security of IoT; and
• Wireless channel characteristics for IoT security.

Dr. Muhammad Naveed Aman
Prof. Dr. Chien-Ming Chen
Prof. Dr. Shehzad Ashraf Chaudhry
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

• hardware security
• physical layer security
• Internet of Things
• embedded devices
• root of trust
• attestation