Security Aspect in the Blockchain

Blockchain is proven technology for providing immutability for the information which is locked in the blocks. But on last few years, we saw that attackers are highly incentivized to export the bugs, risk factors in the existing block chain The objective of this paper is understand the risk associate with the conventional centralized technology & try understand how the labeled technology like block chain help us in order to mitigate the risk . But same time it is important estimate and appreciate the respective risk associated with the same in terms of operational challenges, vulnerabilities& prospective attacks etc as Blockchain is in early stage of its adoption & with introduction of decentralized platform for development like „Ethereum‟ which is nothing but smart math& software codes . Hence, they eventually carry the respective risks associated with software life cycle.