Some Cyber Security Topics: Review Study

Cyber security is the practice of protecting systems, networks, and programs from digital attacks. These cyber-attacks are usually aimed at accessing, changing, or destroying sensitive information; extorting money from users; or interrupting normal business processes. Cloud computing has emerged from the legacy data centres. Consequently, threats applicable in legacy system are equally applicable to cloud computing along with emerging new threats that plague only the cloud systems. Traditionally the data centres were hosted on-premises. Hence, control over the data was comparatively easier than handling a cloud system which is borderless and ubiquitous. Threats due to multi-tenancy, access from anywhere, control of cloud, etc. are some examples of why cloud security becomes important. Considering the significance of cloud security, this work is an attempt to understand the existing cloud service and deployment models, and the major threat factors to cloud security that may be critical in cloud environment