A Study on Cloud Forensics and Challenges in SaaS Application Environment

With virtualization technique, cloud computing is developed rapidly. However, aspects of the collecting of digital proofs for forensics in cloud computing environment, certain guideline is not yet. Therefore, cloud forensic researches in progress for reactivating security incidents in cloud computing. In this paper, we analyze forensic issue, challenges, already proposed forensic model in previous researches for adopting cloud forensic. And we suggest a novel model and approach for cloud forensic in SaaS and discuss needs of Service Level Agreements (SLA) and possibilities of Forensic-as-a-Service.