International Journal of Computing and Digital Systems ISSN (2210-142X) Int. J. Com. Dig. Sys. 11, No.1 (Jan-2022) E-mail address: Adeel.Alshamsi@gmail.com, A16000030@adpoly.ac.ae, A00037324@adpoly.ac.ae, A00036754@adpoly.ac.ae, Nedal.Ababneh@adpoly.ac.ae http://journals.uob.edu.bh http://dx.doi.org/10.12785/ijcds/110155 Enhancing Arabic Text Steganography Based on Unicode Features Adeel Alshamsi 1 , Salem Albaloushi 1 , Mohammed Alkhoori 1 , Hamed Almheiri 1 and Nedal Ababneh 1 Department of Information Security Engineering Technology (ISET), Abu Dhabi Polytechnic, P.O. Box 111499, Abu Dhabi, UAE Received 15 Jun. 2021, Revised 18 Sep. 2021, Accepted 18 Nov. 2021, Published 31 Jan. 2022 Abstract: Steganography is a technique used for hiding secret information or data in a text, image, audio, or video to make it harder for the attackers to detect the hidden information. Many techniques were developed that target the English language but only few Arabic text steganography techniques exist. In this paper, we explore steganography and its types, presented multiple techniques for Arabic steganography, discuss advantages and disadvantages of each technique and described the main functions in our implemented code, after that, we evaluate each technique and suggested improvements that can benefit each technique to enhance their capacity and minimize any problems that can face them to reach our main goal, which is to improve this field to be able to implement its without worrying about any disadvantages that the techniques may have. Keywords: Steganography, Cover Text, Stego-text, Non-printable letters, La. 1. INTRODUCTION In these days, the rise of technology has tremendously increased, and it became one of the most important aspect in life of most people, people use technology in their day-to-day life and it became unavoidable to use technology, some of the uses of day- to-day technology includes but not limited to activities like online shopping, online banking services, and much more . This is why security becomes important more than ever. one of the main topics in security is data protection. Figure 1 presents three of most important types of data protection is Steganography, Cryptography, and Watermarking, these types of data protection all have the same goal of preventing unauthorized users to view or modify the data that are private in their different ways, firstly Cryptography is a technique used for displaying a plain text in an unclearway that make any unauthorized user unable to read or see the message, watermarking is hiding the data in a way that conveys some information about cover mediums such as copyright and ownership, steganography is a technique used to send hidden information secretly by using the characteristics of digital media as a cover, and there are different types of covers including text, video, audio, and image. And in this research, we would discuss steganography in general and its types and techniques. Meanwhile we would focus more about Arabic steganography techniques in addition to how we would improve the techniques so they would be unpredicted and would be more effective to be used in. Figure 1. A comparison between data protection types Steganography is a way to provide a communication secretly between two persons by embedding data in a digital file that could be an image, video, audio, or text as cover using a key to produce a stego-file that will make it very difficult or nearly impossible for the person in the middle to detect the stego-file and only the sender and the