The International Workshop on Multimedia Data and Networks Security (MDNS2021) http://intelligenttech.org/MDNS2021/ November 15th - 17th, 2021, Tartu, Estonia Co-located with The International Conference on Intelligent Data Science Technologies and Applications (IDSTA2021) <http://intelligenttech.org/IDSTA2021> *MDNS2021 Call for Papers:* Multimedia data and Multimedia communication are core parts of multiple areas in today’s society including politics, economics, industries, militaries, and entertainment. For that reason, one of the most challenging security tasks these days is to secure multimedia data by providing confidentiality, integrity, and identity or ownership. Piracy should also be prevented. Techniques such as digital watermarking, data encryption, multimedia authentication, and digital rights management, among others, are proposed to address the security problems but still facing many challenges due the special characteristics of the multimedia data. The International Workshop on Multimedia Data and Networks Security (MDNS) aims to bring together researchers from academia and industry and give them the opportunity to present their contributions to the field. We solicit papers covering various topics in the field that include but are not limited to the following: - Efficient multimedia data encryption - Multimedia streaming security - Mobile multimedia systems security - Multimedia data forensics - Technologies for Multimedia data piracy prevention - Multimedia data ownership - Blockchain for multimedia applications - Multimedia communication security - Video surveillance systems security - AI for multimedia security *Important Dates:* · Submission Due: September 25th, 2021 · Notification: October 5th, 2021 · Camera-ready submission: October 20th, 2021 *Submission Guidelines and formatting* Submitted papers (.pdf format) must use the A4 IEEE Manuscript Templates for Conference Proceedings <https://www.ieee.org/conferences/publishing/templates.html>. Please remember to add Keywords to your submission. Submitted papers may be 6 to 8 pages. Up to two additional pages may be added for references. The reference pages must only contain references. Overlength papers will be rejected without review. Papers submitted to MDNS must be the original work of the authors. The may not be simultaneously under review elsewhere. Publications that have been peer-reviewed and have appeared at other conferences or workshops may not be submitted to MDNS. Authors should be aware that IEEE has a strict policy with regard to plagiarism https://www.ieee.org/publications/rights/plagiarism/plagiarism-faq.html The authors' prior work must be cited appropriately. Please ensure that you submit your papers with the full and final list of authors in the correct order. The author list registered for each submission is not allowed to be changed in any way after the paper submission deadline. Please proofread your submission carefully. It is essential that the language use in the paper is clear and correct so that it is easily understandable. (Either US English or UK English spelling conventions are acceptable.) All accepted papers in MDNS 2021 and the workshops co-located with it will be submitted to IEEEXplore for possible publication. For any question: intelligenttechorg@gmail.com <http://intelligenttech.org/DMIPA2021/>