Dear Colleague, ​ I am editing a section with Professor Jinjun Chen (*SECTION: Big Data Security and Privacy*) of Encyclopedia of Big Data Technologies publish by Springer. https://meteor.springer.com/project/dashboard.jsf?id=643&tab=About Editors-in-Chief for this projects are Sherif Sakr and Albert Y. Zomaya. We are inviting your contribution to publish in the Encyclopedia of Big Data Technologies that should have a length of about 2500-4000 words (i.e. 5-8 pages). For more details, please find the attachment. Can you please let us know (Use following details to contact), if you can contribute a paper to the section. Your quick confirmation is much appreciated. Dr. Deepak Puthal University of Technology Sydney, NSW, Australia Email: Deepak.puthal@gmail.com Professor Jinjun Chen Swinburne University of Technology, VIC, Australia Email: jinjun.chen@gmail.com Thanks, Deepak ​