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This paper delves into the crucial need for robust security measures to protect web services from cyber threats that can compromise their availability, veracity, and privacy. The introduction highlights the inadequacy of existing solutions that are limited to specific use areas and emphasizes the importance of web services being able to respond effectively to assaults and incursions. The related work section discusses the research on web services that has primarily focused on modeling, design, and testing in light of more damaging threats. The methodology section outlines the penetration testing cycle for the SPARCI System, which includes testing for various types of attacks such as DOS, Brut Force Web, Brute Force SSH, Session Hijacking, DNS Spoofing, ARP poisoning, NoSQL Injection, and Memory dump. In this study, we have worked on DOS attacks, and the remaining will be targeted later in the future. The experimental setup includes the necessary instance, Linux system, Python packages, and installed software such as Burp Suite to perform the attack. The results section presents the findings of the penetration testing and the effectiveness of the mitigation strategies employed. The paper concludes that the proposed methodology can be used to identify vulnerabilities in web services and provide recommendations for their mitigation. The study highlights the importance of continuous monitoring and testing of web services to ensure their security and prevent cyber-attacks in terms of identifying and mitigating various vulnerabilities in the existing systems.as.

Cloud Computing is an emerging paradigm which has become today’s hottest research area due to its ability to reduce the costs associated with computing. In today’s era, it is most interesting and enticing technology which is offering the services to its users on demand over the internet. Since Cloud computing stores the data and its disseminated resources in the environment, security has become the main obstacle which is hampering the deployment of cloud environments. There are number of users used cloud to store their personal data, so that data storage security is required on the storage media. The major concern of cloud environment is security during upload the data on cloud server. Data storage at cloud server attracted incredible amount of consideration or spotlight from different communities. For outsourcing the data there is a need of third party. The importance of third party is to prevent and control unauthorized access to data store to the cloud. This research paper discusses the security issues of cloud storage.

Cloud computing is proving itself an emerging technology in IT world which provides a novel business model for organizations to utilize softwares, applications and hardware resources without any upfront investment. Few years later with the broad development in mobile applications and advancements in cloud computing, a new expansion is being expected in the form of mobile cloud computing (MCC). MCC provides a platform where mobile users make use of cloud services on mobile devices. The use of MCC minimizes the performance, compatibility, and lack of resources issues in mobile computing environment. Despite the astonishing advancement achieved by MCC, the users of MCC are still below expectations because of the associated risks in terms of security and privacy. These risks are playing important role by preventing the organizations to adopt MCC environment. Significant amount of research is in progress in order to reduce the security concerns but still a lot work has to be done to produce a security prone MCC environment. This paper presents a comprehensive literature review of MCC and its security issues and challenges.

While cloud computing is gaining popularity, diverse security and privacy issues are emerging that hinder the rapid adoption of this new computing paradigm. And the development of defensive solutions is lagging behind. To ensure a secure and trustworthy cloud environment it is essential to identify the limitations of existing solutions and envision directions for future research. In this paper, we have surveyed critical security and privacy challenges in cloud computing, categorized diverse existing solutions, compared their strengths and limitations, and envisioned future research directions.