Wireless networks have experienced explosive growth during the last few years. Nowadays, there are a large variety of networks spanning from the well-known cellular networks to noninfrastructure wireless networks such as mobile ad hoc networks and sensor networks. Communication security is essential to the success of wireless sensor network applications, especially for those mission-critical applications working in unattended and even hostile environments. However, providing satisfactory security protection in wireless sensor networks has ever been a challenging task due to various network and resource constraints and malicious attacks.

In this Special Issue, we concentrate mainly on security and privacy as well as the emerging applications of wireless sensor networks. It aims to bring together researchers and practitioners from wireless and sensor networking, security, cryptography, and distributed computing communities, with the goal of promoting discussions and collaboration. We are interested in novel research on all aspects of security in wireless sensor networks and tradeoff between security and performance such as QoS, dependability, and scalability. The special issue covers industrial issues/applications and academic research on security and privacy for wireless sensor networks.

Potential topics include but are not limited to the following:

• Access control in wireless sensors networks
• Authentication and authorization in wireless sensors networks
• Big data security in wireless sensor networks
• Blockchain technology for wireless sensor networks
• Firmware security for wireless sensors networks
• Information hiding in wireless sensors networks
• Secure computing in wireless sensor networks
• Trust and collaboration in wireless sensors networks
• Security attacks, vulnerabilities and countermeasures in wireless sensors networks
• Security and privacy enrichment in wireless sensor networks using machine and deep learning techniques