Two-factor Authentication Principles

Any more or less experienced Internet user has been faced with the necessity of identifying on the network. Only a few understand the principle by which multi-level recognition works. In order to most effectively use this powerful data protection tool, you should learn more about it. Two-factor authentication or 2FA is a method of consumer verification on a service that needs two different types of data. The introduction of an additional type of security provides more effective protection of your account from unauthorized admission.

How It Works

Everything begins with the usual password, familiar from registering on any site. It is usually selected by the client when creating a new profile. Just the code itself is not very reliable and can only provide an elementary basic level of page protection. It serves as the first factor to unlock the access, while two-factor authentication requires the user to have two of the three types of credentials.

These types are:

– something he knows;

– what he has;

– inherent in him (biometrics).

Obviously, the first item includes various PIN codes, secret phrases, that the client remembers and enters into the system when prompted.

The second point is a token, that is, a compact device that is owned by the person. The simplest tokens don’t require a physical connection to the computer – they have a screen that displays the number that the user enters to log in. Today, smartphones can act as tokens, because they have become an integral part of our lives. In this case, the so-called one-time password is generated either using a special application or via SMS – this is the simplest and the most friendly for consumers method that some experts rate as less reliable.

The Main Advantages of 2FA

The pros of this technology are:

– very high level of protection, since everything is tied to a phone number, which will be very difficult to fake;

– it is always at hand;

– access codes are changed frequently.

The best in two-factor authentication is the mutual support of one of its factors by another. If the attackers manage to get hold of the username and permanent password, the inability to enter a temporary code can prevent unauthorized admission to the account. If the token is in the hands of fraudsters, then identification will not happen without knowing the main entry data. This type of verification is strong precisely because the disadvantages of one factor may overlap with the advantages of another. And this is exactly what makes this technology so workable and reliable.

Nowadays a large number of companies trust security methods based on multi-factor authentication techniques, including high-tech organizations, financial and insurance market sectors, large banking institutions and public sector enterprises, independent expert organizations, and research firms. Many users who were skeptical of two-factor authentication soon discovered that everything wasn’t so complicated. Today 2FA is experiencing a real boom, and any popular technology is much easier to improve. Despite the difficulties, a bright future awaits it.

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