Hari Om Prakash: 4 books

The buzz in the web market is two-factor authentication (also known as TFA, 2FA, two-step verification, multi-factor authentication). Many users hold multiple accounts on multiple websites, and most of them use the same password for multiple accounts. If their password is hacked on one website, their...

The buzz in the web market is two-factor authentication (also known as TFA, 2FA, two-step verification, multi-factor authentication). Many users hold multiple accounts on multiple websites, and most of them use the same password for multiple accounts. If their password is hacked on one website, their...

By now, we know what two-factor authentication (TFA) is and how it can be an extremely useful security tool. In this concluding part of the article, we will discuss the advantages and disadvantages of TFA, along with various tokens/services available in the market for activating TFA.

In the first part of this article, last month, we learnt what two-factor authentication (TFA) is and its three types. Now, let us see how we can activate TFA for various websites and applications. As secure as TFA is, unfortunately till date, you cannot use it everywhere on the web. However, most...