  Although the blockchain-based applications are considered to be less
vulnerable due to the nature of the distributed ledger, they did not become the
silver bullet with respect to securing the information against different
security risks. In this paper, we present a literature review on the security
risks that can be mitigated by introducing the blockchain technology, and on
the security risks that are identified in the blockchain-based applications. In
addition, we highlight the application and technology domains where these
security risks are observed. The results of this study could be seen as a
preliminary checklist of security risks when implementing blockchain-based
applications.
