Recent Research Activities in Blockchain Technology Focusing on Security

Abstract

Blockchains are a technology that is attracting a lot of research attention in various fields such as finance and healthcare. However, there are reports of cyberattacks on blockchains and crypto-assets, resulting in the theft of huge amounts of cryptoassets. In this article, we focus on the security aspects of blockchains and crypto-assets, and discuss recent topics and research activities on the risk and security of blockchains and secure systems applying blockchains.