*The 4th International Symposium on Future Cyber Security Technologies (FCST 2021)* http://emergingtechnet.org/FCST2021/ *In conjunction with **The 8th International Conference on Internet of Things: Systems, Management and Security (IoTSMS 2021)* <https://emergingtechnet.org/IOTSMS2021/> *Gandia, Spain. December 6-9, 2021* *FCST 2021 CFP:* Hardware systems and Software applications continue to evolve with more functionalities, complex structures and interactions between them and with users. Cyber Security risks continue to evolve as well in both quantity in the same domains as well new types and ways on how to break into computing systems, software applications, websites, databases, programmable networks etc. For example, monitoring the car manufacturing industry, we can see that recent car models have more complex hardware components and automated programmable features in comparison with their earlier models, this will increase the risk associated with protecting such systems. Same thing can be applicable to most other engineering products. Such complex hardware and programmable techniques bring security opportunities to change the way cyber security controls (e.g. firewalls, Intrusion Detection Systems (IDS), etc.) are developed and enforced. They also bring security challenges related to our computing systems and software architectures or any changes that can be directly or indirectly related to them due to the complex interactions between them. The International Symposium on Future Cyber Security Technologies (FCST 2021) will focus on issues related to future cyber security challenges as well as opportunities which mainly highlight the above mentioned aspects. The IEEE International Symposium on Future Cyber Security Technologies (FCST 2021) will be a forum for scientists, researchers, students, and practitioners to present their latest research results, ideas, developments, and applications in the areas of cyber security techniques, security challenges and opportunities for emerging technologies such as cloud computing, Internet of Things (IoT) and Edge Computing,big data, 5G, SDN and many others . We are mainly interested in receiving state of the art work on different aspect of future cyber security management system, security and privacy, cloud computing and big data supported security systems to mention but few. *The topics of interest for this workshop include, but are not limited to:* · Cyber Security Techniques Architectures and Design · Cyber Security Systems · Cyber Security Techniques Integration · Cyber Security Techniques Orchestration · Cyber Security Techniques Based Network Control plane design · Cyber Security Techniques Based NetworkData plane design · Cyber Security Techniques Performance Management · Cyber Security Techniques for Cloud based DataCenter · Cyber Security Techniques for 5G Networks · Cyber Security Techniques for Internet of Things (IoT) · Cyber Security Techniques for Big Data Computing · Cyber Security Techniques for large scale storage system · Hardware system design for Cyber Security · Cyber Security Techniques management · Radio Access Network virtualization · Cyber Security Techniques for programmable Networks · Cyber Security Techniques for Edge and Fog Computing · Cyber Security Techniques Cloud Computing · Cyber Security Techniques for Software Defined Network (SDN) · Cyber Security Techniques Network Function Virtualization (NFV) · Cyber Security Techniques Case studies *Submissions Guidelines and Proceedings* Manuscripts should be prepared in 10-point font using the IEEE 8.5" x 11" two-column format (IEEE Templates <https://www.ieee.org/conferences_events/conferences/publishing/templates.html>). All papers should be in PDF format, and submitted electronically at Paper Submission Link. A full paper must not exceed the stated length (including all figures, tables and references). Submitted papers must present original unpublished research that is not currently under review for any other conference or journal. Papers not following these guidelines may be rejected without review. Also submissions received after the due date, exceeding length limit, or not appropriately structured may also not be considered. Authors may contact the Program Chair for further information or clarification. All submissions are peer-reviewed by at least three reviewers. Accepted papers will appear in the IoTSMS Proceeding and to be submitted to IEEE Xplore for inclusion. The proceedings are also submitted for indexing to EI (Compendex), Scopus and other indexing services like DBLP. Submitted papers must include original work, and must not be under consideration for another conference or journal. Submission of regular papers must not exceed 8 pages and must follow the IEEE paper format. Please include up to 7 keywords, complete postal and e-mail address, and fax and phone numbers of the corresponding author. Authors of accepted papers are expected to present their work at the conference. Submitted papers that are deemed of good quality but that could not be accepted as regular papers will be accepted as short papers. Length of short papers *Important Dates* Submission Date: 15 Sept, 2021 Notification to Authors: 21 Oct, 2021 Camera Ready Submission: 30th Oct, 2021 Please send any inquiry to the Emerging Tech. Network Team at: emergingtechnetwork@gmail.com