The idea of a shared economy becomes one of the companies as an enterprise type. Especially with the advanced development of digital smart devices and the internet, several forms of the mutual economy have been advanced in accord with the need for sharing of separate income. Shareable commodity and digital content are also seeking to utilize. When digital content is used as a sharing economy, various possible threats may arise in the course of transactions, the potential for theft, alteration, and hacking of contents. This paper presents a comprehensive overview of the security and privacy of Blockchain. Blockchain promise transparent, tamper-proof and secure systems that can enable novel solutions, especially when combined with smart contracts. In this research, we proposed a content protection and transaction method using Blockchain Ethereum Technology. The encryption algorithm is incorporated in proposed system to make transparent transactions and it is also implemented on content itself to prevent from smart forgery and hacking. The experimental results signify that the proposed method has strong potential to enhance transactions transparency by minimizing the security threats in digital content transactions.

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North Atlantic Treaty Organization (NATO) has been the most important and successful multilateral military cum political organization, pursuing the agenda of exporting democracy globally and ensuring the mutual defense of its allies. Historically, NATO was formed against the threat of communism emanating from USSR (Russia). The alliance did not use military option till the end of the cold war between the west and USSR, but post-cold war, it transformed and operated in Balkans, South Asia, Horn of Africa, and Middle East. The 9/11 incident further enhanced the military role of the organization and gave it ample reason to act internationally for ensuring the global security. America, being the leader of the alliance used it for fighting the so-called global war on terrorism and its adventures in Middle East. Nevertheless, in the last two decades the organization went through various changes and is now continuously in the state of transformation. The wave of populism which had influenced the very concept of globalization has posed serious challenges for the alliance. The Trump rhetoric of “America first”, BREXIT, challenges of migration, changing demography of Europe, assertion of Russia in global politics, confrontation between the NATO allies like Turkey and France, and rise of China are few factors which may affect the future of the so-called intergovernmental military alliance. This article concurrently discusses the new challenges for the NATO and sheds light on the possible options to the strategy of Biden administration to reverse the policies of its predecessor which have influenced the cooperation of different allies of NATO. In the end researcher has tried to put forth few recommendations which may help the policy makers to cope with the challenges NATO is facing. The study is qualitative and analytical in nature whereas primary as well as secondary sources are used for data collection.