Cloud-Assisted IoT-Based SCADA Systems Security: A Review of the State of the Art and Future Challenges <s> 2) DATA LOGGING <s> The domain of industrial systems is increasingly changing by adopting emerging Internet-based concepts, technologies, tools and methodologies. The rapid advances in computational power coupled with the benefits of the cloud and its services, has the potential to give rise to a new generation of service-based industrial systems whose functionalities reside on-device and in-cloud. Their realisation brings new opportunities, as well as additional challenges. The latter need to be adequately addressed if the vision of future cloud-based industrial cyber-physical system infrastructures is to become a reality and be productively used. <s> BIB001 </s> Cloud-Assisted IoT-Based SCADA Systems Security: A Review of the State of the Art and Future Challenges <s> 2) DATA LOGGING <s> This paper investigates how secure information sharing with external vendors can be achieved in an Industrial Internet of Things (IIoT). It also identifies necessary security requirements for secure information sharing based on identified security challenges stated by the industry. The paper then proposes a roadmap for improving security in IIoT which investigates both short-term and long-term solutions for protecting IIoT devices. The short-term solution is mainly based on integrating existing good practices. The paper also outlines a long term solution for protecting IIoT devices with fine-grained access control for sharing data between external entities that would support cloud-based data storage. <s> BIB002
Security risks related to data logging are also a challenge in IoT-based SCADA systems because of the presence of the cloud BIB002 . Compared to localized logging, keeping track of cloud-based system logs is difficult. VOLUME 4, 2016 3) OWNERSHIP Use of third party cloud services in IoT-based SCADA systems takes ownership privileges from the SCADA systems organization and puts them under the control of the Cloud Service Provider (CSP) BIB001 . Hence, we can say that these systems have lack of control.