  The emergence of cloud computing technologies has changed the way we store,
retrieve, and archive our data. With the promise of unlimited, reliable and
always-available storage, a lot of private and confidential data are now stored
on different cloud platforms. Being such a gold mine of data, cloud platforms
are among the most valuable targets for attackers. Therefore, many forensics
investigators have tried to develop tools, tactics and procedures to collect,
preserve, analyse and report evidences of attackers activities on different
cloud platforms. Despite the number of published articles there is not a
bibliometric study that presents cloud forensics research trends. This paper
aims to address this problem by providing a comprehensive assessment of cloud
forensics research trends between 2009 and 2016. Moreover, we provide a
classification of cloud forensics process to detect the most profound research
areas and highlight remaining challenges.
