Decentralized Defenses: A Framework for 5G IoT Security in Industry 4.0 using Blockchain Crowdsourcing

This research work presents Blockchain Crowdsourcing-empowered 5G IoT as a backbone for network security of industry 4.0 in various applications. The study examines this aspect by featuring blockchain based crowdsourcing to detect and mitigate attacks. A structured literature search on the topic was conducted on various relevant bibliographic databases. 39 publications fulfilled the inclusion criteria. The study indicates that IoT devices in 5G ecosystems have serious security risk due to evolving threats and there are no proactive solutions. However, the best way to respond effectively is to work at the edge of the communication network using the density of IoT devices to obtain and analyze information, then taking corrective measures from the source of the threat. To the author's knowledge, this is the first study to apply the Blockchain based Crowdsourcing tool to mitigate cyber-attacks on 5G IoT networks for Industry 4.0. It has no single point of failure and caters to the increasing demand of cyber security workforce.