Several services offer the possibility of adding a layer of security with two-factor authentication (2FA). What is two-factor authentication? What’s the point? What applications can we use to protect our accounts? We explain everything to you.
I have talked to you a lot for several years now about the importance of having strong passwords on your accounts.
Not only to have strong passwords, but above all diversified from one account to another!
If we use the same password on several accounts, it suffices for one domino to fall for the others to follow afterwards.
Hence the usefulness of password managers which help us generate strong passwords and save them so that we do not need to remember them all. Not to mention that everything is encrypted.
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However, there is also a solution to add another layer of security to our accounts: two-factor authentication (2FA).
What is two-factor authentication
Two-factor authentication is essentially a process where, when we want to log into our account, we have to enter a unique code in addition to our password.
What is this code? It is randomly generated while it can be set to receive the 2FA code by text message or using a two-factor authentication application.
These applications prove to be a safer solution than text messages, because a text message can be intercepted and especially because the code remains the same for a longer period of time than on an application.
Conversely, a two-factor authenticator app generates random codes every 30 seconds or so.
In short, it becomes excessively more difficult for an intruder to enter our account if he manages to get his hands on our password, because he will come up against the 2FA barrier. He would literally need our phone in his hands to do that.
How two-factor authentication apps work
There are several two-factor authentication applications that are free, both on iOS and Android, such as:
- 2FA Authenticator
- Google Authenticator
- Microsoft Authenticator
- LastPass Authenticator
Apps like 2FA Authentificator, LastPass Authentificator, and Google Authentificator generate random codes.
These all work much the same way. You synchronize the account you want to protect using a scan of a QR code or a code displayed on the service screen where you activate two-factor authentication.
Once the synchronization is done, we will have to go to the application to see and enter the 2FA code to connect to our account.
Facebook, Twitter, PayPal, Amazon, Google, Outlook, banking applications, these are some examples of services where it may be wise to activate the famous two-factor authentication.
By going to the security settings of our various accounts and services, we are able to find out if this option is available, then activate it.
Certainly, this is one more step to log into our accounts, but it is a formidable barrier against intruders!
How to enable two-factor authentication on Facebook to protect your account