The data breach occurred at Yahoo last year once again raised an important and most debating question in front of us – “how secure our online data is?” It is very difficult to answer the question. There is no perfect answer but that does not mean IT professionals are not trying to find the solutions. One of the solutions that we use to safeguard our resources from external threats is using passwords. But in this digital era, the approach is not fruitful, hackers know many tricks to crack passwords, no matter, how complex and difficult they are. So, we need a solution that is secure and not possible to hack.
One of the solutions is two-factor authentication. The solution adds an extra security layer. As the name suggests it needs two different factors.
Let’s see what are those.
First factor: Username and password. It is the most common form of authentication. Enter username and password. Once you enter credentials then only you are allowed to go to the next factor.
Second factor: There are many things that can be included in the second factor. It may be something you know, something you have or something you are. In most of the cases, a unique code is sent to your phone or email that you need to enter.
Why we need the second factor?
As I mentioned earlier, passwords alone are not safe. Hackers can guess or hack our passwords using various technologies. The extra layer doubles up the security. The access to the second factor only belongs to us. It is possible for hackers to hack passwords but access to the second factor is not possible. The solution is very famous among businesses ( banking, mutual funds, online transactions etc.) these days.
Two-factor authentication is emerging as the new face of website authentication. And why not, the solution protects us and keeps our data safe.