Blockchain for 2FA

Blockchain is being hailed as one of the most revolutionary and disruptive technologies out there. Blockchain has been disrupting the cybersecurity solutions-based CIA security triad principle. 2FA has been critical in security measures for several years; however, attackers sometimes manage to compromise these systems. We will understand how blockchain can transform the 2FA system to achieve an improved security method.

How can blockchain transform 2FA?

By design, blockchain is a decentralized technology that allows transactions of any kind of value among multiple participants without the involvement of a third party. By leveraging blockchain, we can ensure that this sensitive information never remains on one database; instead, it can be within blockchain nodes that have immutability and can't be modified or deleted. The following diagram shows a blockchain-based 2FA.

In this system, user devices will be authenticated by a third-party 2FA provider through the blockchain network...